91 lines
3.0 KiB
C++
91 lines
3.0 KiB
C++
#pragma once
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#include <json/value.h>
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#include <pulse/context.h>
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#include <pulse/introspect.h>
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#include <pulse/thread-mainloop.h>
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#include <pulse/volume.h>
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#include <functional>
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#include <memory>
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#include <string>
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namespace waybar::util {
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enum class ChangeType : char { Increase, Decrease };
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void noop();
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class AudioBackend {
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private:
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static void subscribeCb(pa_context*, pa_subscription_event_type_t, uint32_t, void*);
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static void contextStateCb(pa_context*, void*);
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static void sinkInfoCb(pa_context*, const pa_sink_info*, int, void*);
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static void sourceInfoCb(pa_context*, const pa_source_info* i, int, void* data);
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static void serverInfoCb(pa_context*, const pa_server_info*, void*);
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static void volumeModifyCb(pa_context*, int, void*);
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pa_threaded_mainloop* mainloop_;
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pa_mainloop_api* mainloop_api_;
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pa_context* context_;
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pa_cvolume pa_volume_;
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// SINK
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uint32_t sink_idx_{0};
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uint16_t volume_;
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bool muted_;
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std::string port_name_;
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std::string form_factor_;
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std::string desc_;
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std::string monitor_;
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std::string current_sink_name_;
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bool current_sink_running_;
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// SOURCE
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uint32_t source_idx_{0};
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uint16_t source_volume_;
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bool source_muted_;
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std::string source_port_name_;
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std::string source_desc_;
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std::string default_source_name_;
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std::vector<std::string> ignored_sinks_;
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std::function<void()> on_updated_cb_ = noop;
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/* Hack to keep constructor inaccessible but still public.
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* This is required to be able to use std::make_shared.
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* It is important to keep this class only accessible via a reference-counted
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* pointer because the destructor will manually free memory, and this could be
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* a problem with C++20's copy and move semantics.
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*/
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struct private_constructor_tag {};
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public:
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static std::shared_ptr<AudioBackend> getInstance(std::function<void()> on_updated_cb = noop);
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AudioBackend(std::function<void()> on_updated_cb, private_constructor_tag tag);
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~AudioBackend();
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void changeVolume(uint16_t volume, uint16_t min_volume = 0, uint16_t max_volume = 100);
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void changeVolume(ChangeType change_type, double step = 1, uint16_t max_volume = 100);
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void setIgnoredSinks(const Json::Value& config);
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std::string getSinkPortName() const { return port_name_; }
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std::string getFormFactor() const { return form_factor_; }
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std::string getSinkDesc() const { return desc_; }
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std::string getMonitor() const { return monitor_; }
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std::string getCurrentSinkName() const { return current_sink_name_; }
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bool getCurrentSinkRunning() const { return current_sink_running_; }
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uint16_t getSinkVolume() const { return volume_; }
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bool getSinkMuted() const { return muted_; }
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uint16_t getSourceVolume() const { return source_volume_; }
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bool getSourceMuted() const { return source_muted_; }
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std::string getSourcePortName() const { return source_port_name_; }
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std::string getSourceDesc() const { return source_desc_; }
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std::string getDefaultSourceName() const { return default_source_name_; }
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bool isBluetooth();
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};
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} // namespace waybar::util
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