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// Copyright 2012-2021 The Mumble Developers. All rights reserved.
// Use of this source code is governed by a BSD-style license
// that can be found in the LICENSE file at the root of the
// Mumble source tree or at <https://www.mumble.info/LICENSE>.
#ifndef MUMBLE_MUMBLE_WASAPINOTIFICATIONCLIENT_H_
#define MUMBLE_MUMBLE_WASAPINOTIFICATIONCLIENT_H_
#include <QtCore/QMutex>
#include <QtCore/QObject>
#include <mmdeviceapi.h>
/**
* @brief Singleton for acting on WASAPINotification events for given devices.
*/
class WASAPINotificationClient : public QObject, public IMMNotificationClient {
Q_OBJECT
public:
/* IMMNotificationClient interface */
HRESULT STDMETHODCALLTYPE OnDefaultDeviceChanged(EDataFlow flow, ERole role, LPCWSTR pwstrDefaultDevice);
HRESULT STDMETHODCALLTYPE OnPropertyValueChanged(LPCWSTR pwstrDeviceId, const PROPERTYKEY key);
HRESULT STDMETHODCALLTYPE OnDeviceAdded(LPCWSTR pwstrDeviceId);
HRESULT STDMETHODCALLTYPE OnDeviceRemoved(LPCWSTR pwstrDeviceId);
HRESULT STDMETHODCALLTYPE OnDeviceStateChanged(LPCWSTR pwstrDeviceId, DWORD dwNewState);
HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, VOID **ppvInterface);
ULONG STDMETHODCALLTYPE AddRef();
ULONG STDMETHODCALLTYPE Release();
/* Enlist/Unlist functionality */
void enlistDefaultDeviceAsUsed(LPCWSTR pwstrDefaultDevice);
void enlistDeviceAsUsed(LPCWSTR pwstrDevice);
void enlistDeviceAsUsed(const QString &device);
void unlistDevice(LPCWSTR pwstrDevice);
void clearUsedDefaultDeviceList();
void clearUsedDeviceLists();
/**
* @return Singleton instance reference.
*/
static WASAPINotificationClient &get();
private:
WASAPINotificationClient();
~WASAPINotificationClient() Q_DECL_OVERRIDE;
WASAPINotificationClient(const WASAPINotificationClient &);
WASAPINotificationClient &operator=(const WASAPINotificationClient &);
static WASAPINotificationClient &doGet();
static void doGetOnce();
void restartAudio();
/* _fu = Non locking versions */
void _clearUsedDeviceLists();
void _enlistDeviceAsUsed(const QString &device);
QStringList usedDefaultDevices;
QStringList usedDevices;
IMMDeviceEnumerator *pEnumerator;
LONG _cRef;
QMutex listsMutex;
signals:
void doResetAudio();
};
#endif // WASAPINOTIFICATIONCLIENT_H_
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