polybar-dwm/include/adapters/pulseaudio.hpp
2018-01-20 12:37:41 -08:00

76 lines
2.1 KiB
C++

#pragma once
#include <pulse/pulseaudio.h>
#include <queue>
#include "common.hpp"
#include "settings.hpp"
#include "errors.hpp"
#include "utils/math.hpp"
// fwd
struct pa_context;
struct pa_threaded_mainloop;
struct pa_cvolume;
typedef struct pa_context pa_context;
typedef struct pa_threaded_mainloop pa_threaded_mainloop;
POLYBAR_NS
DEFINE_ERROR(pulseaudio_error);
class pulseaudio {
// events to add to our queue
enum class evtype { NEW = 0, CHANGE, REMOVE };
using queue = std::queue<evtype>;
public:
explicit pulseaudio(string&& sink_name);
~pulseaudio();
pulseaudio(const pulseaudio& o) = delete;
pulseaudio& operator=(const pulseaudio& o) = delete;
const string& get_name();
bool wait(int timeout = -1);
int process_events();
int get_volume();
void set_volume(float percentage);
void inc_volume(int delta_perc);
void set_mute(bool mode);
void toggle_mute();
bool is_muted();
private:
static void check_mute_callback(pa_context *context, const pa_sink_info *info, int eol, void *userdata);
static void get_sink_volume_callback(pa_context *context, const pa_sink_info *info, int is_last, void *userdata);
static void subscribe_callback(pa_context* context, pa_subscription_event_type_t t, uint32_t idx, void* userdata);
static void simple_callback(pa_context *context, int success, void *userdata);
static void get_default_sink_callback(pa_context *context, const pa_server_info *info, void *userdata);
static void sink_info_callback(pa_context *context, const pa_sink_info *info, int eol, void *userdata);
static void context_state_callback(pa_context *context, void *userdata);
inline void wait_loop(pa_operation *op, pa_threaded_mainloop *loop);
// used for temporary callback results
int success;
pa_cvolume cv;
bool muted;
bool exists;
pa_context* m_context{nullptr};
pa_threaded_mainloop* m_mainloop{nullptr};
queue m_events;
// specified sink name
string spec_s_name;
// default sink name
string def_s_name;
uint32_t m_index{0};
};
POLYBAR_NS_END