gecko-dev/dom/bluetooth/BluetoothDevice.cpp

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/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* 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 "base/basictypes.h"
#include "BluetoothDevice.h"
#include "BluetoothReplyRunnable.h"
#include "BluetoothService.h"
#include "BluetoothUtils.h"
#include "nsDOMClassInfo.h"
#include "nsTArrayHelpers.h"
#include "mozilla/dom/bluetooth/BluetoothTypes.h"
#include "mozilla/dom/BluetoothDeviceBinding.h"
USING_BLUETOOTH_NAMESPACE
DOMCI_DATA(BluetoothDevice, BluetoothDevice)
NS_IMPL_CYCLE_COLLECTION_CLASS(BluetoothDevice)
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(BluetoothDevice,
nsDOMEventTargetHelper)
NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mJsUuids)
NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mJsServices)
NS_IMPL_CYCLE_COLLECTION_TRACE_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(BluetoothDevice,
nsDOMEventTargetHelper)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(BluetoothDevice,
nsDOMEventTargetHelper)
tmp->Unroot();
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(BluetoothDevice)
NS_INTERFACE_MAP_ENTRY(nsIDOMBluetoothDevice)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(BluetoothDevice)
NS_INTERFACE_MAP_END_INHERITING(nsDOMEventTargetHelper)
NS_IMPL_ADDREF_INHERITED(BluetoothDevice, nsDOMEventTargetHelper)
NS_IMPL_RELEASE_INHERITED(BluetoothDevice, nsDOMEventTargetHelper)
BluetoothDevice::BluetoothDevice(nsPIDOMWindow* aWindow,
const nsAString& aAdapterPath,
const BluetoothValue& aValue)
: nsDOMEventTargetHelper(aWindow)
, BluetoothPropertyContainer(BluetoothObjectType::TYPE_DEVICE)
, mJsUuids(nullptr)
, mJsServices(nullptr)
, mAdapterPath(aAdapterPath)
, mIsRooted(false)
{
MOZ_ASSERT(aWindow);
MOZ_ASSERT(IsDOMBinding());
BindToOwner(aWindow);
const InfallibleTArray<BluetoothNamedValue>& values =
aValue.get_ArrayOfBluetoothNamedValue();
for (uint32_t i = 0; i < values.Length(); ++i) {
SetPropertyByValue(values[i]);
}
BluetoothService* bs = BluetoothService::Get();
NS_ENSURE_TRUE_VOID(bs);
bs->RegisterBluetoothSignalHandler(mAddress, this);
}
BluetoothDevice::~BluetoothDevice()
{
BluetoothService* bs = BluetoothService::Get();
// bs can be null on shutdown, where destruction might happen.
NS_ENSURE_TRUE_VOID(bs);
bs->UnregisterBluetoothSignalHandler(mAddress, this);
Unroot();
}
void
BluetoothDevice::Root()
{
if (!mIsRooted) {
mozilla::HoldJSObjects(this);
mIsRooted = true;
}
}
void
BluetoothDevice::Unroot()
{
if (mIsRooted) {
mJsUuids = nullptr;
mJsServices = nullptr;
mozilla::DropJSObjects(this);
mIsRooted = false;
}
}
void
BluetoothDevice::SetPropertyByValue(const BluetoothNamedValue& aValue)
{
const nsString& name = aValue.name();
const BluetoothValue& value = aValue.value();
if (name.EqualsLiteral("Name")) {
mName = value.get_nsString();
} else if (name.EqualsLiteral("Path")) {
MOZ_ASSERT(value.get_nsString().Length() > 0);
mPath = value.get_nsString();
} else if (name.EqualsLiteral("Address")) {
mAddress = value.get_nsString();
} else if (name.EqualsLiteral("Class")) {
mClass = value.get_uint32_t();
} else if (name.EqualsLiteral("Icon")) {
mIcon = value.get_nsString();
} else if (name.EqualsLiteral("Connected")) {
mConnected = value.get_bool();
} else if (name.EqualsLiteral("Paired")) {
mPaired = value.get_bool();
} else if (name.EqualsLiteral("UUIDs")) {
mUuids = value.get_ArrayOfnsString();
nsresult rv;
nsIScriptContext* sc = GetContextForEventHandlers(&rv);
NS_ENSURE_SUCCESS_VOID(rv);
NS_ENSURE_TRUE_VOID(sc);
AutoPushJSContext cx(sc->GetNativeContext());
JS::Rooted<JSObject*> uuids(cx);
if (NS_FAILED(nsTArrayToJSArray(cx, mUuids, uuids.address()))) {
BT_WARNING("Cannot set JS UUIDs object!");
return;
}
mJsUuids = uuids;
Root();
} else if (name.EqualsLiteral("Services")) {
mServices = value.get_ArrayOfnsString();
nsresult rv;
nsIScriptContext* sc = GetContextForEventHandlers(&rv);
NS_ENSURE_SUCCESS_VOID(rv);
NS_ENSURE_TRUE_VOID(sc);
AutoPushJSContext cx(sc->GetNativeContext());
JS::Rooted<JSObject*> services(cx);
if (NS_FAILED(nsTArrayToJSArray(cx, mServices, services.address()))) {
BT_WARNING("Cannot set JS Services object!");
return;
}
mJsServices = services;
Root();
} else {
nsCString warningMsg;
warningMsg.AssignLiteral("Not handling device property: ");
warningMsg.Append(NS_ConvertUTF16toUTF8(name));
BT_WARNING(warningMsg.get());
}
}
// static
already_AddRefed<BluetoothDevice>
BluetoothDevice::Create(nsPIDOMWindow* aWindow,
const nsAString& aAdapterPath,
const BluetoothValue& aValue)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aWindow);
nsRefPtr<BluetoothDevice> device =
new BluetoothDevice(aWindow, aAdapterPath, aValue);
return device.forget();
}
void
BluetoothDevice::Notify(const BluetoothSignal& aData)
{
BT_LOGD("[D] %s: %s", __FUNCTION__, NS_ConvertUTF16toUTF8(aData.name()).get());
BluetoothValue v = aData.value();
if (aData.name().EqualsLiteral("PropertyChanged")) {
NS_ASSERTION(v.type() == BluetoothValue::TArrayOfBluetoothNamedValue,
"PropertyChanged: Invalid value type");
const InfallibleTArray<BluetoothNamedValue>& arr =
v.get_ArrayOfBluetoothNamedValue();
NS_ASSERTION(arr.Length() == 1,
"Got more than one property in a change message!");
SetPropertyByValue(arr[0]);
} else {
#ifdef DEBUG
nsCString warningMsg;
warningMsg.AssignLiteral("Not handling device signal: ");
warningMsg.Append(NS_ConvertUTF16toUTF8(aData.name()));
BT_WARNING(warningMsg.get());
#endif
}
}
JS::Value
BluetoothDevice::GetUuids(JSContext* aCx, ErrorResult& aRv)
{
if (!mJsUuids) {
BT_WARNING("UUIDs not yet set!");
aRv.Throw(NS_ERROR_FAILURE);
return JS::NullValue();
}
JS::ExposeObjectToActiveJS(mJsUuids);
return JS::ObjectValue(*mJsUuids);
}
JS::Value
BluetoothDevice::GetServices(JSContext* aCx, ErrorResult& aRv)
{
if (!mJsServices) {
BT_WARNING("Services not yet set!");
aRv.Throw(NS_ERROR_FAILURE);
return JS::Value(JSVAL_NULL);
}
JS::ExposeObjectToActiveJS(mJsServices);
return JS::ObjectValue(*mJsServices);
}
JSObject*
BluetoothDevice::WrapObject(JSContext* aContext, JS::Handle<JSObject*> aScope)
{
return BluetoothDeviceBinding::Wrap(aContext, aScope, this);
}