michael@0: /* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
michael@0: /* vim: set ts=2 et sw=2 tw=80: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "base/basictypes.h"
michael@0: 
michael@0: #include "BluetoothHidManager.h"
michael@0: 
michael@0: #include "BluetoothCommon.h"
michael@0: #include "BluetoothService.h"
michael@0: #include "BluetoothUtils.h"
michael@0: 
michael@0: #include "mozilla/dom/bluetooth/BluetoothTypes.h"
michael@0: #include "mozilla/Services.h"
michael@0: #include "mozilla/StaticPtr.h"
michael@0: #include "nsIObserverService.h"
michael@0: #include "MainThreadUtils.h"
michael@0: 
michael@0: using namespace mozilla;
michael@0: USING_BLUETOOTH_NAMESPACE
michael@0: 
michael@0: namespace {
michael@0:   StaticRefPtr<BluetoothHidManager> sBluetoothHidManager;
michael@0:   bool sInShutdown = false;
michael@0: } // anonymous namespace
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: BluetoothHidManager::Observe(nsISupports* aSubject,
michael@0:                              const char* aTopic,
michael@0:                              const char16_t* aData)
michael@0: {
michael@0:   MOZ_ASSERT(sBluetoothHidManager);
michael@0: 
michael@0:   if (!strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID)) {
michael@0:     HandleShutdown();
michael@0:     return NS_OK;
michael@0:   }
michael@0: 
michael@0:   MOZ_ASSERT(false, "BluetoothHidManager got unexpected topic!");
michael@0:   return NS_ERROR_UNEXPECTED;
michael@0: }
michael@0: 
michael@0: BluetoothHidManager::BluetoothHidManager()
michael@0: {
michael@0:   Reset();
michael@0: }
michael@0: 
michael@0: void
michael@0: BluetoothHidManager::Reset()
michael@0: {
michael@0:   mConnected = false;
michael@0:   mController = nullptr;
michael@0: }
michael@0: 
michael@0: bool
michael@0: BluetoothHidManager::Init()
michael@0: {
michael@0:   MOZ_ASSERT(NS_IsMainThread());
michael@0: 
michael@0:   nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
michael@0:   NS_ENSURE_TRUE(obs, false);
michael@0:   if (NS_FAILED(obs->AddObserver(this, NS_XPCOM_SHUTDOWN_OBSERVER_ID, false))) {
michael@0:     BT_WARNING("Failed to add shutdown observer!");
michael@0:     return false;
michael@0:   }
michael@0: 
michael@0:   return true;
michael@0: }
michael@0: 
michael@0: BluetoothHidManager::~BluetoothHidManager()
michael@0: {
michael@0:   nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
michael@0:   NS_ENSURE_TRUE_VOID(obs);
michael@0:   if (NS_FAILED(obs->RemoveObserver(this, NS_XPCOM_SHUTDOWN_OBSERVER_ID))) {
michael@0:     BT_WARNING("Failed to remove shutdown observer!");
michael@0:   }
michael@0: }
michael@0: 
michael@0: //static
michael@0: BluetoothHidManager*
michael@0: BluetoothHidManager::Get()
michael@0: {
michael@0:   MOZ_ASSERT(NS_IsMainThread());
michael@0: 
michael@0:   // If we already exist, exit early
michael@0:   if (sBluetoothHidManager) {
michael@0:     return sBluetoothHidManager;
michael@0:   }
michael@0: 
michael@0:   // If we're in shutdown, don't create a new instance
michael@0:   NS_ENSURE_FALSE(sInShutdown, nullptr);
michael@0: 
michael@0:   // Create a new instance, register, and return
michael@0:   BluetoothHidManager* manager = new BluetoothHidManager();
michael@0:   NS_ENSURE_TRUE(manager->Init(), nullptr);
michael@0: 
michael@0:   sBluetoothHidManager = manager;
michael@0:   return sBluetoothHidManager;
michael@0: }
michael@0: 
michael@0: void
michael@0: BluetoothHidManager::HandleShutdown()
michael@0: {
michael@0:   MOZ_ASSERT(NS_IsMainThread());
michael@0:   sInShutdown = true;
michael@0:   Disconnect(nullptr);
michael@0:   sBluetoothHidManager = nullptr;
michael@0: }
michael@0: 
michael@0: void
michael@0: BluetoothHidManager::Connect(const nsAString& aDeviceAddress,
michael@0:                              BluetoothProfileController* aController)
michael@0: {
michael@0:   MOZ_ASSERT(NS_IsMainThread());
michael@0:   MOZ_ASSERT(!aDeviceAddress.IsEmpty());
michael@0:   MOZ_ASSERT(aController && !mController);
michael@0: 
michael@0:   BluetoothService* bs = BluetoothService::Get();
michael@0:   if (!bs || sInShutdown) {
michael@0:     aController->NotifyCompletion(NS_LITERAL_STRING(ERR_NO_AVAILABLE_RESOURCE));
michael@0:     return;
michael@0:   }
michael@0: 
michael@0:   if (mConnected) {
michael@0:     aController->NotifyCompletion(NS_LITERAL_STRING(ERR_ALREADY_CONNECTED));
michael@0:     return;
michael@0:   }
michael@0: 
michael@0:   mDeviceAddress = aDeviceAddress;
michael@0:   mController = aController;
michael@0: 
michael@0:   if (NS_FAILED(bs->SendInputMessage(aDeviceAddress,
michael@0:                                      NS_LITERAL_STRING("Connect")))) {
michael@0:     aController->NotifyCompletion(NS_LITERAL_STRING(ERR_NO_AVAILABLE_RESOURCE));
michael@0:     return;
michael@0:   }
michael@0: }
michael@0: 
michael@0: void
michael@0: BluetoothHidManager::Disconnect(BluetoothProfileController* aController)
michael@0: {
michael@0:   MOZ_ASSERT(NS_IsMainThread());
michael@0: 
michael@0:   BluetoothService* bs = BluetoothService::Get();
michael@0:   if (!bs) {
michael@0:     if (aController) {
michael@0:       aController->NotifyCompletion(NS_LITERAL_STRING(ERR_NO_AVAILABLE_RESOURCE));
michael@0:     }
michael@0:     return;
michael@0:   }
michael@0: 
michael@0:   if (!mConnected) {
michael@0:     if (aController) {
michael@0:       aController->NotifyCompletion(NS_LITERAL_STRING(ERR_ALREADY_DISCONNECTED));
michael@0:     }
michael@0:     return;
michael@0:   }
michael@0: 
michael@0:   MOZ_ASSERT(!mDeviceAddress.IsEmpty());
michael@0:   MOZ_ASSERT(!mController);
michael@0: 
michael@0:   mController = aController;
michael@0: 
michael@0:   if (NS_FAILED(bs->SendInputMessage(mDeviceAddress,
michael@0:                                      NS_LITERAL_STRING("Disconnect")))) {
michael@0:     aController->NotifyCompletion(NS_LITERAL_STRING(ERR_NO_AVAILABLE_RESOURCE));
michael@0:     return;
michael@0:   }
michael@0: }
michael@0: 
michael@0: void
michael@0: BluetoothHidManager::OnConnect(const nsAString& aErrorStr)
michael@0: {
michael@0:   MOZ_ASSERT(NS_IsMainThread());
michael@0: 
michael@0:   /**
michael@0:    * On the one hand, notify the controller that we've done for outbound
michael@0:    * connections. On the other hand, we do nothing for inbound connections.
michael@0:    */
michael@0:   NS_ENSURE_TRUE_VOID(mController);
michael@0: 
michael@0:   nsRefPtr<BluetoothProfileController> controller = mController.forget();
michael@0:   controller->NotifyCompletion(aErrorStr);
michael@0: }
michael@0: 
michael@0: void
michael@0: BluetoothHidManager::OnDisconnect(const nsAString& aErrorStr)
michael@0: {
michael@0:   MOZ_ASSERT(NS_IsMainThread());
michael@0: 
michael@0:   /**
michael@0:    * On the one hand, notify the controller that we've done for outbound
michael@0:    * connections. On the other hand, we do nothing for inbound connections.
michael@0:    */
michael@0:   NS_ENSURE_TRUE_VOID(mController);
michael@0: 
michael@0:   nsRefPtr<BluetoothProfileController> controller = mController.forget();
michael@0:   controller->NotifyCompletion(aErrorStr);
michael@0: }
michael@0: 
michael@0: bool
michael@0: BluetoothHidManager::IsConnected()
michael@0: {
michael@0:   return mConnected;
michael@0: }
michael@0: 
michael@0: void
michael@0: BluetoothHidManager::HandleInputPropertyChanged(const BluetoothSignal& aSignal)
michael@0: {
michael@0:   MOZ_ASSERT(NS_IsMainThread());
michael@0:   MOZ_ASSERT(aSignal.value().type() == BluetoothValue::TArrayOfBluetoothNamedValue);
michael@0: 
michael@0:   const InfallibleTArray<BluetoothNamedValue>& arr =
michael@0:     aSignal.value().get_ArrayOfBluetoothNamedValue();
michael@0:   MOZ_ASSERT(arr.Length() == 1);
michael@0: 
michael@0:   const nsString& name = arr[0].name();
michael@0:   const BluetoothValue& value = arr[0].value();
michael@0: 
michael@0:   if (name.EqualsLiteral("Connected")) {
michael@0:     MOZ_ASSERT(value.type() == BluetoothValue::Tbool);
michael@0:     MOZ_ASSERT(mConnected != value.get_bool());
michael@0: 
michael@0:     mConnected = value.get_bool();
michael@0:     NotifyStatusChanged();
michael@0:     if (mConnected) {
michael@0:       OnConnect(EmptyString());
michael@0:     } else {
michael@0:       OnDisconnect(EmptyString());
michael@0:     }
michael@0:   }
michael@0: }
michael@0: 
michael@0: void
michael@0: BluetoothHidManager::NotifyStatusChanged()
michael@0: {
michael@0:   MOZ_ASSERT(NS_IsMainThread());
michael@0: 
michael@0:   NS_NAMED_LITERAL_STRING(type, BLUETOOTH_HID_STATUS_CHANGED_ID);
michael@0:   InfallibleTArray<BluetoothNamedValue> parameters;
michael@0: 
michael@0:   BT_APPEND_NAMED_VALUE(parameters, "connected", mConnected);
michael@0:   BT_APPEND_NAMED_VALUE(parameters, "address", mDeviceAddress);
michael@0: 
michael@0:   BT_ENSURE_TRUE_VOID_BROADCAST_SYSMSG(type, parameters);
michael@0: }
michael@0: 
michael@0: void
michael@0: BluetoothHidManager::OnGetServiceChannel(const nsAString& aDeviceAddress,
michael@0:                                          const nsAString& aServiceUuid,
michael@0:                                          int aChannel)
michael@0: {
michael@0:   // Do nothing here as bluez acquires service channel and connects for us
michael@0: }
michael@0: 
michael@0: void
michael@0: BluetoothHidManager::OnUpdateSdpRecords(const nsAString& aDeviceAddress)
michael@0: {
michael@0:   // Do nothing here as bluez acquires service channel and connects for us
michael@0: }
michael@0: 
michael@0: void
michael@0: BluetoothHidManager::GetAddress(nsAString& aDeviceAddress)
michael@0: {
michael@0:   aDeviceAddress = mDeviceAddress;
michael@0: }
michael@0: 
michael@0: NS_IMPL_ISUPPORTS(BluetoothHidManager, nsIObserver)