зеркало из https://github.com/mozilla/gecko-dev.git
136 строки
4.2 KiB
C++
136 строки
4.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "BluetoothService.h"
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#include "mozilla/dom/BluetoothDeviceEvent.h"
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#include "mozilla/dom/BluetoothDiscoveryHandleBinding.h"
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#include "mozilla/dom/bluetooth/BluetoothCommon.h"
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#include "mozilla/dom/bluetooth/BluetoothDiscoveryHandle.h"
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#include "mozilla/dom/bluetooth/BluetoothLeDeviceEvent.h"
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#include "mozilla/dom/bluetooth/BluetoothTypes.h"
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#include "nsThreadUtils.h"
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USING_BLUETOOTH_NAMESPACE
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(BluetoothDiscoveryHandle)
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NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
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NS_IMPL_ADDREF_INHERITED(BluetoothDiscoveryHandle, DOMEventTargetHelper)
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NS_IMPL_RELEASE_INHERITED(BluetoothDiscoveryHandle, DOMEventTargetHelper)
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BluetoothDiscoveryHandle::BluetoothDiscoveryHandle(nsPIDOMWindow* aWindow)
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: DOMEventTargetHelper(aWindow)
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, mLeScanUuid(EmptyString())
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{
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MOZ_ASSERT(aWindow);
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}
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BluetoothDiscoveryHandle::BluetoothDiscoveryHandle(
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nsPIDOMWindow* aWindow,
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const nsTArray<nsString>& aServiceUuids,
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const nsAString& aLeScanUuid)
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: DOMEventTargetHelper(aWindow)
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, mLeScanUuid(aLeScanUuid)
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, mServiceUuids(aServiceUuids)
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{
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MOZ_ASSERT(aWindow);
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}
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BluetoothDiscoveryHandle::~BluetoothDiscoveryHandle()
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{
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}
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// static
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already_AddRefed<BluetoothDiscoveryHandle>
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BluetoothDiscoveryHandle::Create(nsPIDOMWindow* aWindow)
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{
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MOZ_ASSERT(NS_IsMainThread());
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MOZ_ASSERT(aWindow);
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nsRefPtr<BluetoothDiscoveryHandle> handle =
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new BluetoothDiscoveryHandle(aWindow);
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return handle.forget();
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}
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already_AddRefed<BluetoothDiscoveryHandle>
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BluetoothDiscoveryHandle::Create(
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nsPIDOMWindow* aWindow,
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const nsTArray<nsString>& aServiceUuids,
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const nsAString& aLeScanUuid)
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{
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MOZ_ASSERT(NS_IsMainThread());
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MOZ_ASSERT(aWindow);
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nsRefPtr<BluetoothDiscoveryHandle> handle =
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new BluetoothDiscoveryHandle(aWindow, aServiceUuids, aLeScanUuid);
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return handle.forget();
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}
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void
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BluetoothDiscoveryHandle::DispatchDeviceEvent(BluetoothDevice* aDevice)
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{
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MOZ_ASSERT(aDevice);
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BluetoothDeviceEventInit init;
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init.mDevice = aDevice;
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nsRefPtr<BluetoothDeviceEvent> event =
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BluetoothDeviceEvent::Constructor(this,
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NS_LITERAL_STRING("devicefound"),
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init);
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DispatchTrustedEvent(event);
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}
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void
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BluetoothDiscoveryHandle::DispatchLeDeviceEvent(BluetoothDevice* aLeDevice,
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int32_t aRssi, nsTArray<uint8_t>& aScanRecord)
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{
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MOZ_ASSERT(aLeDevice);
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nsTArray<nsString> remoteUuids;
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aLeDevice->GetUuids(remoteUuids);
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bool hasUuidsFilter = !mServiceUuids.IsEmpty();
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bool noAdvertisingUuid = remoteUuids.IsEmpty();
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// If a LE device doesn't advertise its service UUIDs, it can't possibly pass
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// the UUIDs filter.
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if (hasUuidsFilter && noAdvertisingUuid) {
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return;
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}
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// The web API startLeScan() makes the device's adapter start seeking for
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// remote LE devices advertising given service UUIDs.
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// Since current Bluetooth stack can't filter the results of LeScan by UUIDs,
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// gecko has to filter the results and dispach what API asked for.
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bool matched = false;
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for (size_t index = 0; index < remoteUuids.Length(); ++index) {
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if (mServiceUuids.Contains(remoteUuids[index])) {
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matched = true;
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break;
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}
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}
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// Dispach 'devicefound 'event only if
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// - the service UUIDs in the scan record matchs the given UUIDs.
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// - the given UUIDs is empty.
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if (matched || mServiceUuids.IsEmpty()) {
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nsRefPtr<BluetoothLeDeviceEvent> event =
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BluetoothLeDeviceEvent::Constructor(this,
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NS_LITERAL_STRING("devicefound"),
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aLeDevice,
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aRssi,
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aScanRecord);
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DispatchTrustedEvent(event);
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}
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}
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JSObject*
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BluetoothDiscoveryHandle::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto)
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{
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return BluetoothDiscoveryHandleBinding::Wrap(aCx, this, aGivenProto);
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}
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