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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/dom/bluetooth/BluetoothPairingListener.h"
#include "mozilla/dom/bluetooth/BluetoothPairingHandle.h"
#include "mozilla/dom/bluetooth/BluetoothTypes.h"
#include "mozilla/dom/BluetoothPairingEvent.h"
#include "mozilla/dom/BluetoothPairingListenerBinding.h"
#include "BluetoothService.h"
USING_BLUETOOTH_NAMESPACE
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(BluetoothPairingListener)
NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
NS_IMPL_ADDREF_INHERITED(BluetoothPairingListener, DOMEventTargetHelper)
NS_IMPL_RELEASE_INHERITED(BluetoothPairingListener, DOMEventTargetHelper)
BluetoothPairingListener::BluetoothPairingListener(nsPIDOMWindow* aWindow)
: DOMEventTargetHelper(aWindow)
, mHasListenedToSignal(false)
{
MOZ_ASSERT(aWindow);
TryListeningToBluetoothSignal();
}
already_AddRefed<BluetoothPairingListener>
BluetoothPairingListener::Create(nsPIDOMWindow* aWindow)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aWindow);
nsRefPtr<BluetoothPairingListener> handle =
new BluetoothPairingListener(aWindow);
return handle.forget();
}
BluetoothPairingListener::~BluetoothPairingListener()
{
BluetoothService* bs = BluetoothService::Get();
// It can be nullptr on shutdown.
NS_ENSURE_TRUE_VOID(bs);
bs->UnregisterBluetoothSignalHandler(NS_LITERAL_STRING(KEY_PAIRING_LISTENER),
this);
}
void
BluetoothPairingListener::DispatchPairingEvent(BluetoothDevice* aDevice,
const nsAString& aPasskey,
const nsAString& aType)
{
MOZ_ASSERT(aDevice && !aType.IsEmpty());
nsString address;
aDevice->GetAddress(address);
nsRefPtr<BluetoothPairingHandle> handle =
BluetoothPairingHandle::Create(GetOwner(),
address,
aType,
aPasskey);
BluetoothPairingEventInit init;
init.mDevice = aDevice;
init.mHandle = handle;
nsRefPtr<BluetoothPairingEvent> event =
BluetoothPairingEvent::Constructor(this,
aType,
init);
DispatchTrustedEvent(event);
}
void
BluetoothPairingListener::Notify(const BluetoothSignal& aData)
{
InfallibleTArray<BluetoothNamedValue> arr;
BluetoothValue value = aData.value();
if (aData.name().EqualsLiteral("PairingRequest")) {
MOZ_ASSERT(value.type() == BluetoothValue::TArrayOfBluetoothNamedValue);
const InfallibleTArray<BluetoothNamedValue>& arr =
value.get_ArrayOfBluetoothNamedValue();
MOZ_ASSERT(arr.Length() == 4 &&
arr[0].value().type() == BluetoothValue::TnsString && // address
arr[1].value().type() == BluetoothValue::TnsString && // name
arr[2].value().type() == BluetoothValue::TnsString && // passkey
arr[3].value().type() == BluetoothValue::TnsString); // type
nsString deviceAddress = arr[0].value().get_nsString();
nsString deviceName = arr[1].value().get_nsString();
nsString passkey = arr[2].value().get_nsString();
nsString type = arr[3].value().get_nsString();
// Create a temporary device with deviceAddress and deviceName
InfallibleTArray<BluetoothNamedValue> props;
BT_APPEND_NAMED_VALUE(props, "Address", deviceAddress);
BT_APPEND_NAMED_VALUE(props, "Name", deviceName);
nsRefPtr<BluetoothDevice> device =
BluetoothDevice::Create(GetOwner(), props);
// Notify pairing listener of pairing requests
DispatchPairingEvent(device, passkey, type);
} else {
BT_WARNING("Not handling pairing listener signal: %s",
NS_ConvertUTF16toUTF8(aData.name()).get());
}
}
JSObject*
BluetoothPairingListener::WrapObject(JSContext* aCx)
{
return BluetoothPairingListenerBinding::Wrap(aCx, this);
}
void
BluetoothPairingListener::DisconnectFromOwner()
{
DOMEventTargetHelper::DisconnectFromOwner();
BluetoothService* bs = BluetoothService::Get();
NS_ENSURE_TRUE_VOID(bs);
bs->UnregisterBluetoothSignalHandler(NS_LITERAL_STRING(KEY_PAIRING_LISTENER),
this);
}
void
BluetoothPairingListener::EventListenerAdded(nsIAtom* aType)
{
DOMEventTargetHelper::EventListenerAdded(aType);
TryListeningToBluetoothSignal();
}
void
BluetoothPairingListener::TryListeningToBluetoothSignal()
{
if (mHasListenedToSignal) {
// We've handled prior pending pairing requests
return;
}
// Listen to bluetooth signal only if all pairing event handlers have been
// attached. All pending pairing requests queued in BluetoothService would
// be fired when pairing listener starts listening to bluetooth signal.
if (!HasListenersFor(nsGkAtoms::ondisplaypasskeyreq) ||
!HasListenersFor(nsGkAtoms::onenterpincodereq) ||
!HasListenersFor(nsGkAtoms::onpairingconfirmationreq) ||
!HasListenersFor(nsGkAtoms::onpairingconsentreq)) {
BT_LOGR("Pairing listener is not ready to handle pairing requests!");
return;
}
// Start listening to bluetooth signal to handle pairing requests
BluetoothService* bs = BluetoothService::Get();
NS_ENSURE_TRUE_VOID(bs);
bs->RegisterBluetoothSignalHandler(NS_LITERAL_STRING(KEY_PAIRING_LISTENER),
this);
mHasListenedToSignal = true;
}
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