Merge pull request #2575 from Syndelis/feat/slider

pull/2585/head
Alexis Rouillard 2023-10-16 08:08:37 +02:00 committed by GitHub
commit 42741c963e
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
19 changed files with 1239 additions and 557 deletions

View File

@ -0,0 +1,19 @@
#pragma once
#include "AModule.hpp"
#include "gtkmm/scale.h"
namespace waybar {
class ASlider : public AModule {
public:
ASlider(const Json::Value& config, const std::string& name, const std::string& id);
virtual void onValueChanged();
protected:
bool vertical_ = false;
int min_ = 0, max_ = 100, curr_ = 50;
Gtk::Scale scale_;
};
} // namespace waybar

View File

@ -1,14 +1,14 @@
#pragma once #pragma once
#include <memory>
#include <optional> #include <optional>
#include <string> #include <string>
#include <string_view> #include <string_view>
#include <vector> #include <vector>
#include "ALabel.hpp" #include "ALabel.hpp"
#include "giomm/dbusproxy.h" #include "util/backlight_backend.hpp"
#include "util/json.hpp" #include "util/json.hpp"
#include "util/sleeper_thread.hpp"
struct udev; struct udev;
struct udev_device; struct udev_device;
@ -16,54 +16,17 @@ struct udev_device;
namespace waybar::modules { namespace waybar::modules {
class Backlight : public ALabel { class Backlight : public ALabel {
class BacklightDev {
public:
BacklightDev() = default;
BacklightDev(std::string name, int actual, int max, bool powered);
std::string_view name() const;
int get_actual() const;
void set_actual(int actual);
int get_max() const;
void set_max(int max);
bool get_powered() const;
void set_powered(bool powered);
friend inline bool operator==(const BacklightDev &lhs, const BacklightDev &rhs) {
return lhs.name_ == rhs.name_ && lhs.actual_ == rhs.actual_ && lhs.max_ == rhs.max_;
}
private:
std::string name_;
int actual_ = 1;
int max_ = 1;
bool powered_ = true;
};
public: public:
Backlight(const std::string &, const Json::Value &); Backlight(const std::string &, const Json::Value &);
virtual ~Backlight(); virtual ~Backlight() = default;
auto update() -> void override; auto update() -> void override;
private:
template <class ForwardIt>
static const BacklightDev *best_device(ForwardIt first, ForwardIt last, std::string_view);
template <class ForwardIt, class Inserter>
static void upsert_device(ForwardIt first, ForwardIt last, Inserter inserter, udev_device *dev);
template <class ForwardIt, class Inserter>
static void enumerate_devices(ForwardIt first, ForwardIt last, Inserter inserter, udev *udev);
bool handleScroll(GdkEventScroll *e) override; bool handleScroll(GdkEventScroll *e) override;
const std::string preferred_device_; const std::string preferred_device_;
static constexpr int EPOLL_MAX_EVENTS = 16;
std::optional<BacklightDev> previous_best_;
std::string previous_format_; std::string previous_format_;
std::mutex udev_thread_mutex_; util::BacklightBackend backend;
std::vector<BacklightDev> devices_;
// thread must destruct before shared data
util::SleeperThread udev_thread_;
Glib::RefPtr<Gio::DBus::Proxy> login_proxy_;
}; };
} // namespace waybar::modules } // namespace waybar::modules

View File

@ -0,0 +1,24 @@
#pragma once
#include <chrono>
#include "ASlider.hpp"
#include "util/backlight_backend.hpp"
namespace waybar::modules {
class BacklightSlider : public ASlider {
public:
BacklightSlider(const std::string&, const Json::Value&);
virtual ~BacklightSlider() = default;
void update() override;
void onValueChanged() override;
private:
std::chrono::milliseconds interval_;
std::string preferred_device_;
util::BacklightBackend backend;
};
} // namespace waybar::modules

View File

@ -1,54 +1,27 @@
#pragma once #pragma once
#include <fmt/format.h> #include <fmt/format.h>
#include <pulse/pulseaudio.h>
#include <pulse/volume.h>
#include <algorithm> #include <algorithm>
#include <array> #include <array>
#include <memory>
#include "ALabel.hpp" #include "ALabel.hpp"
#include "util/audio_backend.hpp"
namespace waybar::modules { namespace waybar::modules {
class Pulseaudio : public ALabel { class Pulseaudio : public ALabel {
public: public:
Pulseaudio(const std::string&, const Json::Value&); Pulseaudio(const std::string&, const Json::Value&);
virtual ~Pulseaudio(); virtual ~Pulseaudio() = default;
auto update() -> void override; auto update() -> void override;
private: private:
static void subscribeCb(pa_context*, pa_subscription_event_type_t, uint32_t, void*);
static void contextStateCb(pa_context*, void*);
static void sinkInfoCb(pa_context*, const pa_sink_info*, int, void*);
static void sourceInfoCb(pa_context*, const pa_source_info* i, int, void* data);
static void serverInfoCb(pa_context*, const pa_server_info*, void*);
static void volumeModifyCb(pa_context*, int, void*);
bool handleScroll(GdkEventScroll* e) override; bool handleScroll(GdkEventScroll* e) override;
const std::vector<std::string> getPulseIcon() const; const std::vector<std::string> getPulseIcon() const;
pa_threaded_mainloop* mainloop_; std::shared_ptr<util::AudioBackend> backend = nullptr;
pa_mainloop_api* mainloop_api_;
pa_context* context_;
// SINK
uint32_t sink_idx_{0};
uint16_t volume_;
pa_cvolume pa_volume_;
bool muted_;
std::string port_name_;
std::string form_factor_;
std::string desc_;
std::string monitor_;
std::string current_sink_name_;
bool current_sink_running_;
// SOURCE
uint32_t source_idx_{0};
uint16_t source_volume_;
bool source_muted_;
std::string source_port_name_;
std::string source_desc_;
std::string default_source_name_;
}; };
} // namespace waybar::modules } // namespace waybar::modules

View File

@ -0,0 +1,27 @@
#pragma once
#include <memory>
#include "ASlider.hpp"
#include "util/audio_backend.hpp"
namespace waybar::modules {
enum class PulseaudioSliderTarget {
Sink,
Source,
};
class PulseaudioSlider : public ASlider {
public:
PulseaudioSlider(const std::string&, const Json::Value&);
virtual ~PulseaudioSlider() = default;
void update() override;
void onValueChanged() override;
private:
std::shared_ptr<util::AudioBackend> backend = nullptr;
PulseaudioSliderTarget target = PulseaudioSliderTarget::Sink;
};
} // namespace waybar::modules

View File

@ -0,0 +1,95 @@
#pragma once
#include <json/value.h>
#include <pulse/context.h>
#include <pulse/introspect.h>
#include <pulse/thread-mainloop.h>
#include <pulse/volume.h>
#include <functional>
#include <memory>
#include <string>
#include "util/backend_common.hpp"
namespace waybar::util {
class AudioBackend {
private:
static void subscribeCb(pa_context*, pa_subscription_event_type_t, uint32_t, void*);
static void contextStateCb(pa_context*, void*);
static void sinkInfoCb(pa_context*, const pa_sink_info*, int, void*);
static void sourceInfoCb(pa_context*, const pa_source_info* i, int, void* data);
static void serverInfoCb(pa_context*, const pa_server_info*, void*);
static void volumeModifyCb(pa_context*, int, void*);
pa_threaded_mainloop* mainloop_;
pa_mainloop_api* mainloop_api_;
pa_context* context_;
pa_cvolume pa_volume_;
// SINK
uint32_t sink_idx_{0};
uint16_t volume_;
bool muted_;
std::string port_name_;
std::string form_factor_;
std::string desc_;
std::string monitor_;
std::string current_sink_name_;
bool current_sink_running_;
// SOURCE
uint32_t source_idx_{0};
uint16_t source_volume_;
bool source_muted_;
std::string source_port_name_;
std::string source_desc_;
std::string default_source_name_;
std::vector<std::string> ignored_sinks_;
std::function<void()> on_updated_cb_ = NOOP;
/* Hack to keep constructor inaccessible but still public.
* This is required to be able to use std::make_shared.
* It is important to keep this class only accessible via a reference-counted
* pointer because the destructor will manually free memory, and this could be
* a problem with C++20's copy and move semantics.
*/
struct private_constructor_tag {};
public:
static std::shared_ptr<AudioBackend> getInstance(std::function<void()> on_updated_cb = NOOP);
AudioBackend(std::function<void()> on_updated_cb, private_constructor_tag tag);
~AudioBackend();
void changeVolume(uint16_t volume, uint16_t min_volume = 0, uint16_t max_volume = 100);
void changeVolume(ChangeType change_type, double step = 1, uint16_t max_volume = 100);
void setIgnoredSinks(const Json::Value& config);
std::string getSinkPortName() const { return port_name_; }
std::string getFormFactor() const { return form_factor_; }
std::string getSinkDesc() const { return desc_; }
std::string getMonitor() const { return monitor_; }
std::string getCurrentSinkName() const { return current_sink_name_; }
bool getCurrentSinkRunning() const { return current_sink_running_; }
uint16_t getSinkVolume() const { return volume_; }
bool getSinkMuted() const { return muted_; }
uint16_t getSourceVolume() const { return source_volume_; }
bool getSourceMuted() const { return source_muted_; }
std::string getSourcePortName() const { return source_port_name_; }
std::string getSourceDesc() const { return source_desc_; }
std::string getDefaultSourceName() const { return default_source_name_; }
void toggleSinkMute();
void toggleSinkMute(bool);
void toggleSourceMute();
void toggleSourceMute(bool);
bool isBluetooth();
};
} // namespace waybar::util

View File

@ -0,0 +1,10 @@
#pragma once
#include "AModule.hpp"
namespace waybar::util {
const static auto NOOP = []() {};
enum class ChangeType : char { Increase, Decrease };
} // namespace waybar::util

View File

@ -0,0 +1,93 @@
#pragma once
#include <libudev.h>
#include <spdlog/spdlog.h>
#include <chrono>
#include <mutex>
#include <optional>
#include <string>
#include <string_view>
#include <vector>
#include "giomm/dbusproxy.h"
#include "util/backend_common.hpp"
#include "util/sleeper_thread.hpp"
#define GET_BEST_DEVICE(varname, backend, preferred_device) \
decltype((backend).devices_) __devices; \
{ \
std::scoped_lock<std::mutex> lock((backend).udev_thread_mutex_); \
__devices = (backend).devices_; \
} \
auto varname = (backend).best_device(__devices.cbegin(), __devices.cend(), preferred_device);
namespace waybar::util {
class BacklightDevice {
public:
BacklightDevice() = default;
BacklightDevice(std::string name, int actual, int max, bool powered);
std::string name() const;
int get_actual() const;
void set_actual(int actual);
int get_max() const;
void set_max(int max);
bool get_powered() const;
void set_powered(bool powered);
friend inline bool operator==(const BacklightDevice &lhs, const BacklightDevice &rhs) {
return lhs.name_ == rhs.name_ && lhs.actual_ == rhs.actual_ && lhs.max_ == rhs.max_;
}
private:
std::string name_;
int actual_ = 1;
int max_ = 1;
bool powered_ = true;
};
class BacklightBackend {
public:
BacklightBackend(std::chrono::milliseconds interval, std::function<void()> on_updated_cb = NOOP);
// const inline BacklightDevice *get_best_device(std::string_view preferred_device);
const BacklightDevice *get_previous_best_device();
void set_previous_best_device(const BacklightDevice *device);
void set_brightness(std::string preferred_device, ChangeType change_type, double step);
void set_scaled_brightness(std::string preferred_device, int brightness);
int get_scaled_brightness(std::string preferred_device);
template <class ForwardIt, class Inserter>
static void upsert_device(ForwardIt first, ForwardIt last, Inserter inserter, udev_device *dev);
template <class ForwardIt, class Inserter>
static void enumerate_devices(ForwardIt first, ForwardIt last, Inserter inserter, udev *udev);
bool is_login_proxy_initialized() const { return static_cast<bool>(login_proxy_); }
template <class ForwardIt>
static const BacklightDevice *best_device(ForwardIt first, ForwardIt last, std::string_view);
std::vector<BacklightDevice> devices_;
std::mutex udev_thread_mutex_;
private:
void set_brightness_internal(std::string device_name, int brightness, int max_brightness);
std::function<void()> on_updated_cb_;
std::chrono::milliseconds polling_interval_;
std::optional<BacklightDevice> previous_best_;
// thread must destruct before shared data
util::SleeperThread udev_thread_;
Glib::RefPtr<Gio::DBus::Proxy> login_proxy_;
static constexpr int EPOLL_MAX_EVENTS = 16;
};
} // namespace waybar::util

View File

@ -0,0 +1,88 @@
waybar-backlight-slider(5)
# NAME
waybar - backlight slider module
# DESCRIPTION
The *backlight slider* module displays and controls the current brightness of the default or preferred device.
The brightness can be controlled by dragging the slider accross the bar, or clicking on a specific position.
# CONFIGURATION
*min*: ++
typeof: int ++
default: 0 ++
The minimum volume value the slider should display and set.
*max*: ++
typeof: int ++
default: 100 ++
The maximum volume value the slider should display and set.
*orientation*: ++
typeof: string ++
default: horizontal ++
The orientation of the slider. Can be either `horizontal` or `vertical`.
*device*: ++
typeof: string ++
The name of the preferred device to control. If left empty, a device will be chosen automatically.
# EXAMPLES
```
"modules-right": [
"backlight-slider",
],
"backlight/slider": {
"min": 0,
"max": 100,
"orientation": "horizontal",
"device": "intel_backlight"
}
```
# STYLE
The slider is a component with multiple CSS Nodes, of which the following are exposed:
*#backlight-slider*: ++
Controls the style of the box *around* the slider and bar.
*#backlight-slider slider*: ++
Controls the style of the slider handle.
*#backlight-slider trough*: ++
Controls the style of the part of the bar that has not been filled.
*#backlight-slider highlight*: ++
Controls the style of the part of the bar that has been filled.
## STYLE EXAMPLE
```
#backlight-slider slider {
min-height: 0px;
min-width: 0px;
opacity: 0;
background-image: none;
border: none;
box-shadow: none;
}
#backlight-slider trough {
min-height: 80px;
min-width: 10px;
border-radius: 5px;
background-color: black;
}
#backlight-slider highlight {
min-width: 10px;
border-radius: 5px;
background-color: red;
}
```

View File

@ -0,0 +1,83 @@
waybar-pulseaudio-slider(5)
# NAME
waybar - pulseaudio slider module
# DESCRIPTION
The *pulseaudio slider* module displays and controls the current volume of the default sink or source as a bar.
The volume can be controlled by dragging the slider accross the bar, or clicking on a specific position.
# CONFIGURATION
*min*: ++
typeof: int ++
default: 0 ++
The minimum volume value the slider should display and set.
*max*: ++
typeof: int ++
default: 100 ++
The maximum volume value the slider should display and set.
*orientation*: ++
typeof: string ++
default: horizontal ++
The orientation of the slider. Can be either `horizontal` or `vertical`.
# EXAMPLES
```
"modules-right": [
"pulseaudio-slider",
],
"pulseaudio/slider": {
"min": 0,
"max": 100,
"orientation": "horizontal"
}
```
# STYLE
The slider is a component with multiple CSS Nodes, of which the following are exposed:
*#pulseaudio-slider*: ++
Controls the style of the box *around* the slider and bar.
*#pulseaudio-slider slider*: ++
Controls the style of the slider handle.
*#pulseaudio-slider trough*: ++
Controls the style of the part of the bar that has not been filled.
*#pulseaudio-slider highlight*: ++
Controls the style of the part of the bar that has been filled.
## STYLE EXAMPLE
```
#pulseaudio-slider slider {
min-height: 0px;
min-width: 0px;
opacity: 0;
background-image: none;
border: none;
box-shadow: none;
}
#pulseaudio-slider trough {
min-height: 80px;
min-width: 10px;
border-radius: 5px;
background-color: black;
}
#pulseaudio-slider highlight {
min-width: 10px;
border-radius: 5px;
background-color: green;
}
```

View File

@ -166,6 +166,7 @@ src_files = files(
'src/modules/image.cpp', 'src/modules/image.cpp',
'src/modules/temperature.cpp', 'src/modules/temperature.cpp',
'src/modules/user.cpp', 'src/modules/user.cpp',
'src/ASlider.cpp',
'src/main.cpp', 'src/main.cpp',
'src/bar.cpp', 'src/bar.cpp',
'src/client.cpp', 'src/client.cpp',
@ -273,6 +274,8 @@ endif
if libpulse.found() if libpulse.found()
add_project_arguments('-DHAVE_LIBPULSE', language: 'cpp') add_project_arguments('-DHAVE_LIBPULSE', language: 'cpp')
src_files += 'src/modules/pulseaudio.cpp' src_files += 'src/modules/pulseaudio.cpp'
src_files += 'src/modules/pulseaudio_slider.cpp'
src_files += 'src/util/audio_backend.cpp'
endif endif
if libjack.found() if libjack.found()
@ -298,6 +301,8 @@ endif
if libudev.found() and (is_linux or libepoll.found()) if libudev.found() and (is_linux or libepoll.found())
add_project_arguments('-DHAVE_LIBUDEV', language: 'cpp') add_project_arguments('-DHAVE_LIBUDEV', language: 'cpp')
src_files += 'src/modules/backlight.cpp' src_files += 'src/modules/backlight.cpp'
src_files += 'src/modules/backlight_slider.cpp'
src_files += 'src/util/backlight_backend.cpp'
endif endif
if libevdev.found() and (is_linux or libepoll.found()) and libinput.found() and (is_linux or libinotify.found()) if libevdev.found() and (is_linux or libepoll.found()) and libinput.found() and (is_linux or libinotify.found())
@ -425,6 +430,7 @@ if scdoc.found()
man_files = [ man_files = [
main_manpage_path, main_manpage_path,
'waybar-backlight.5.scd', 'waybar-backlight.5.scd',
'waybar-backlight-slider.5.scd',
'waybar-battery.5.scd', 'waybar-battery.5.scd',
'waybar-cava.5.scd', 'waybar-cava.5.scd',
'waybar-clock.5.scd', 'waybar-clock.5.scd',
@ -440,6 +446,7 @@ if scdoc.found()
'waybar-mpris.5.scd', 'waybar-mpris.5.scd',
'waybar-network.5.scd', 'waybar-network.5.scd',
'waybar-pulseaudio.5.scd', 'waybar-pulseaudio.5.scd',
'waybar-pulseaudio-slider.5.scd',
'waybar-river-mode.5.scd', 'waybar-river-mode.5.scd',
'waybar-river-tags.5.scd', 'waybar-river-tags.5.scd',
'waybar-river-window.5.scd', 'waybar-river-window.5.scd',

34
src/ASlider.cpp 100644
View File

@ -0,0 +1,34 @@
#include "ASlider.hpp"
#include "gtkmm/adjustment.h"
#include "gtkmm/enums.h"
namespace waybar {
ASlider::ASlider(const Json::Value& config, const std::string& name, const std::string& id)
: AModule(config, name, id, false, false),
vertical_(config_["orientation"].asString() == "vertical"),
scale_(vertical_ ? Gtk::ORIENTATION_VERTICAL : Gtk::ORIENTATION_HORIZONTAL) {
scale_.set_name(name);
if (!id.empty()) {
scale_.get_style_context()->add_class(id);
}
event_box_.add(scale_);
scale_.signal_value_changed().connect(sigc::mem_fun(*this, &ASlider::onValueChanged));
if (config_["min"].isUInt()) {
min_ = config_["min"].asUInt();
}
if (config_["max"].isUInt()) {
max_ = config_["max"].asUInt();
}
scale_.set_inverted(vertical_);
scale_.set_draw_value(false);
scale_.set_adjustment(Gtk::Adjustment::create(curr_, min_, max_ + 1, 1, 1, 1));
}
void ASlider::onValueChanged() {}
} // namespace waybar

View File

@ -1,5 +1,13 @@
#include "factory.hpp" #include "factory.hpp"
#ifdef HAVE_LIBPULSE
#include "modules/pulseaudio_slider.hpp"
#endif
#ifdef HAVE_LIBUDEV
#include "modules/backlight_slider.hpp"
#endif
waybar::Factory::Factory(const Bar& bar, const Json::Value& config) : bar_(bar), config_(config) {} waybar::Factory::Factory(const Bar& bar, const Json::Value& config) : bar_(bar), config_(config) {}
waybar::AModule* waybar::Factory::makeModule(const std::string& name) const { waybar::AModule* waybar::Factory::makeModule(const std::string& name) const {
@ -126,6 +134,9 @@ waybar::AModule* waybar::Factory::makeModule(const std::string& name) const {
if (ref == "backlight") { if (ref == "backlight") {
return new waybar::modules::Backlight(id, config_[name]); return new waybar::modules::Backlight(id, config_[name]);
} }
if (ref == "backlight/slider") {
return new waybar::modules::BacklightSlider(id, config_[name]);
}
#endif #endif
#ifdef HAVE_LIBEVDEV #ifdef HAVE_LIBEVDEV
if (ref == "keyboard-state") { if (ref == "keyboard-state") {
@ -136,6 +147,9 @@ waybar::AModule* waybar::Factory::makeModule(const std::string& name) const {
if (ref == "pulseaudio") { if (ref == "pulseaudio") {
return new waybar::modules::Pulseaudio(id, config_[name]); return new waybar::modules::Pulseaudio(id, config_[name]);
} }
if (ref == "pulseaudio/slider") {
return new waybar::modules::PulseaudioSlider(id, config_[name]);
}
#endif #endif
#ifdef HAVE_LIBMPDCLIENT #ifdef HAVE_LIBMPDCLIENT
if (ref == "mpd") { if (ref == "mpd") {

View File

@ -2,6 +2,7 @@
#include <fmt/format.h> #include <fmt/format.h>
#include <libudev.h> #include <libudev.h>
#include <spdlog/spdlog.h>
#include <sys/epoll.h> #include <sys/epoll.h>
#include <unistd.h> #include <unistd.h>
@ -9,179 +10,26 @@
#include <chrono> #include <chrono>
#include <memory> #include <memory>
namespace { #include "util/backend_common.hpp"
class FileDescriptor { #include "util/backlight_backend.hpp"
public:
explicit FileDescriptor(int fd) : fd_(fd) {}
FileDescriptor(const FileDescriptor &other) = delete;
FileDescriptor(FileDescriptor &&other) noexcept = delete;
FileDescriptor &operator=(const FileDescriptor &other) = delete;
FileDescriptor &operator=(FileDescriptor &&other) noexcept = delete;
~FileDescriptor() {
if (fd_ != -1) {
if (close(fd_) != 0) {
fmt::print(stderr, "Failed to close fd: {}\n", errno);
}
}
}
int get() const { return fd_; }
private:
int fd_;
};
struct UdevDeleter {
void operator()(udev *ptr) { udev_unref(ptr); }
};
struct UdevDeviceDeleter {
void operator()(udev_device *ptr) { udev_device_unref(ptr); }
};
struct UdevEnumerateDeleter {
void operator()(udev_enumerate *ptr) { udev_enumerate_unref(ptr); }
};
struct UdevMonitorDeleter {
void operator()(udev_monitor *ptr) { udev_monitor_unref(ptr); }
};
void check_eq(int rc, int expected, const char *message = "eq, rc was: ") {
if (rc != expected) {
throw std::runtime_error(fmt::format(fmt::runtime(message), rc));
}
}
void check_neq(int rc, int bad_rc, const char *message = "neq, rc was: ") {
if (rc == bad_rc) {
throw std::runtime_error(fmt::format(fmt::runtime(message), rc));
}
}
void check0(int rc, const char *message = "rc wasn't 0") { check_eq(rc, 0, message); }
void check_gte(int rc, int gte, const char *message = "rc was: ") {
if (rc < gte) {
throw std::runtime_error(fmt::format(fmt::runtime(message), rc));
}
}
void check_nn(const void *ptr, const char *message = "ptr was null") {
if (ptr == nullptr) {
throw std::runtime_error(message);
}
}
} // namespace
waybar::modules::Backlight::BacklightDev::BacklightDev(std::string name, int actual, int max,
bool powered)
: name_(std::move(name)), actual_(actual), max_(max), powered_(powered) {}
std::string_view waybar::modules::Backlight::BacklightDev::name() const { return name_; }
int waybar::modules::Backlight::BacklightDev::get_actual() const { return actual_; }
void waybar::modules::Backlight::BacklightDev::set_actual(int actual) { actual_ = actual; }
int waybar::modules::Backlight::BacklightDev::get_max() const { return max_; }
void waybar::modules::Backlight::BacklightDev::set_max(int max) { max_ = max; }
bool waybar::modules::Backlight::BacklightDev::get_powered() const { return powered_; }
void waybar::modules::Backlight::BacklightDev::set_powered(bool powered) { powered_ = powered; }
waybar::modules::Backlight::Backlight(const std::string &id, const Json::Value &config) waybar::modules::Backlight::Backlight(const std::string &id, const Json::Value &config)
: ALabel(config, "backlight", id, "{percent}%", 2), : ALabel(config, "backlight", id, "{percent}%", 2),
preferred_device_(config["device"].isString() ? config["device"].asString() : "") { preferred_device_(config["device"].isString() ? config["device"].asString() : ""),
// Get initial state backend(interval_, [this] { dp.emit(); }) {
{ dp.emit();
std::unique_ptr<udev, UdevDeleter> udev_check{udev_new()};
check_nn(udev_check.get(), "Udev check new failed");
enumerate_devices(devices_.begin(), devices_.end(), std::back_inserter(devices_),
udev_check.get());
if (devices_.empty()) {
throw std::runtime_error("No backlight found");
}
dp.emit();
}
// Set up scroll handler // Set up scroll handler
event_box_.add_events(Gdk::SCROLL_MASK | Gdk::SMOOTH_SCROLL_MASK); event_box_.add_events(Gdk::SCROLL_MASK | Gdk::SMOOTH_SCROLL_MASK);
event_box_.signal_scroll_event().connect(sigc::mem_fun(*this, &Backlight::handleScroll)); event_box_.signal_scroll_event().connect(sigc::mem_fun(*this, &Backlight::handleScroll));
// Connect to the login interface
login_proxy_ = Gio::DBus::Proxy::create_for_bus_sync(
Gio::DBus::BusType::BUS_TYPE_SYSTEM, "org.freedesktop.login1",
"/org/freedesktop/login1/session/self", "org.freedesktop.login1.Session");
udev_thread_ = [this] {
std::unique_ptr<udev, UdevDeleter> udev{udev_new()};
check_nn(udev.get(), "Udev new failed");
std::unique_ptr<udev_monitor, UdevMonitorDeleter> mon{
udev_monitor_new_from_netlink(udev.get(), "udev")};
check_nn(mon.get(), "udev monitor new failed");
check_gte(udev_monitor_filter_add_match_subsystem_devtype(mon.get(), "backlight", nullptr), 0,
"udev failed to add monitor filter: ");
udev_monitor_enable_receiving(mon.get());
auto udev_fd = udev_monitor_get_fd(mon.get());
auto epoll_fd = FileDescriptor{epoll_create1(EPOLL_CLOEXEC)};
check_neq(epoll_fd.get(), -1, "epoll init failed: ");
epoll_event ctl_event{};
ctl_event.events = EPOLLIN;
ctl_event.data.fd = udev_fd;
check0(epoll_ctl(epoll_fd.get(), EPOLL_CTL_ADD, ctl_event.data.fd, &ctl_event),
"epoll_ctl failed: {}");
epoll_event events[EPOLL_MAX_EVENTS];
while (udev_thread_.isRunning()) {
const int event_count = epoll_wait(epoll_fd.get(), events, EPOLL_MAX_EVENTS,
std::chrono::milliseconds{interval_}.count());
if (!udev_thread_.isRunning()) {
break;
}
decltype(devices_) devices;
{
std::scoped_lock<std::mutex> lock(udev_thread_mutex_);
devices = devices_;
}
for (int i = 0; i < event_count; ++i) {
const auto &event = events[i];
check_eq(event.data.fd, udev_fd, "unexpected udev fd");
std::unique_ptr<udev_device, UdevDeviceDeleter> dev{udev_monitor_receive_device(mon.get())};
check_nn(dev.get(), "epoll dev was null");
upsert_device(devices.begin(), devices.end(), std::back_inserter(devices), dev.get());
}
// Refresh state if timed out
if (event_count == 0) {
enumerate_devices(devices.begin(), devices.end(), std::back_inserter(devices), udev.get());
}
{
std::scoped_lock<std::mutex> lock(udev_thread_mutex_);
devices_ = devices;
}
dp.emit();
}
};
} }
waybar::modules::Backlight::~Backlight() = default;
auto waybar::modules::Backlight::update() -> void { auto waybar::modules::Backlight::update() -> void {
decltype(devices_) devices; GET_BEST_DEVICE(best, backend, preferred_device_);
{
std::scoped_lock<std::mutex> lock(udev_thread_mutex_);
devices = devices_;
}
const auto best = best_device(devices.cbegin(), devices.cend(), preferred_device_); const auto previous_best_device = backend.get_previous_best_device();
if (best != nullptr) { if (best != nullptr) {
if (previous_best_.has_value() && previous_best_.value() == *best && if (previous_best_device != nullptr && *previous_best_device == *best &&
!previous_format_.empty() && previous_format_ == format_) { !previous_format_.empty() && previous_format_ == format_) {
return; return;
} }
@ -211,84 +59,16 @@ auto waybar::modules::Backlight::update() -> void {
event_box_.hide(); event_box_.hide();
} }
} else { } else {
if (!previous_best_.has_value()) { if (previous_best_device == nullptr) {
return; return;
} }
label_.set_markup(""); label_.set_markup("");
} }
previous_best_ = best == nullptr ? std::nullopt : std::optional{*best}; backend.set_previous_best_device(best);
previous_format_ = format_; previous_format_ = format_;
// Call parent update
ALabel::update(); ALabel::update();
} }
template <class ForwardIt>
const waybar::modules::Backlight::BacklightDev *waybar::modules::Backlight::best_device(
ForwardIt first, ForwardIt last, std::string_view preferred_device) {
const auto found = std::find_if(
first, last, [preferred_device](const auto &dev) { return dev.name() == preferred_device; });
if (found != last) {
return &(*found);
}
const auto max = std::max_element(
first, last, [](const auto &l, const auto &r) { return l.get_max() < r.get_max(); });
return max == last ? nullptr : &(*max);
}
template <class ForwardIt, class Inserter>
void waybar::modules::Backlight::upsert_device(ForwardIt first, ForwardIt last, Inserter inserter,
udev_device *dev) {
const char *name = udev_device_get_sysname(dev);
check_nn(name);
const char *actual_brightness_attr =
strncmp(name, "amdgpu_bl", 9) == 0 || strcmp(name, "apple-panel-bl") == 0
? "brightness"
: "actual_brightness";
const char *actual = udev_device_get_sysattr_value(dev, actual_brightness_attr);
const char *max = udev_device_get_sysattr_value(dev, "max_brightness");
const char *power = udev_device_get_sysattr_value(dev, "bl_power");
auto found =
std::find_if(first, last, [name](const auto &device) { return device.name() == name; });
if (found != last) {
if (actual != nullptr) {
found->set_actual(std::stoi(actual));
}
if (max != nullptr) {
found->set_max(std::stoi(max));
}
if (power != nullptr) {
found->set_powered(std::stoi(power) == 0);
}
} else {
const int actual_int = actual == nullptr ? 0 : std::stoi(actual);
const int max_int = max == nullptr ? 0 : std::stoi(max);
const bool power_bool = power == nullptr ? true : std::stoi(power) == 0;
*inserter = BacklightDev{name, actual_int, max_int, power_bool};
++inserter;
}
}
template <class ForwardIt, class Inserter>
void waybar::modules::Backlight::enumerate_devices(ForwardIt first, ForwardIt last,
Inserter inserter, udev *udev) {
std::unique_ptr<udev_enumerate, UdevEnumerateDeleter> enumerate{udev_enumerate_new(udev)};
udev_enumerate_add_match_subsystem(enumerate.get(), "backlight");
udev_enumerate_scan_devices(enumerate.get());
udev_list_entry *enum_devices = udev_enumerate_get_list_entry(enumerate.get());
udev_list_entry *dev_list_entry;
udev_list_entry_foreach(dev_list_entry, enum_devices) {
const char *path = udev_list_entry_get_name(dev_list_entry);
std::unique_ptr<udev_device, UdevDeviceDeleter> dev{udev_device_new_from_syspath(udev, path)};
check_nn(dev.get(), "dev new failed");
upsert_device(first, last, inserter, dev.get());
}
}
bool waybar::modules::Backlight::handleScroll(GdkEventScroll *e) { bool waybar::modules::Backlight::handleScroll(GdkEventScroll *e) {
// Check if the user has set a custom command for scrolling // Check if the user has set a custom command for scrolling
if (config_["on-scroll-up"].isString() || config_["on-scroll-down"].isString()) { if (config_["on-scroll-up"].isString() || config_["on-scroll-down"].isString()) {
@ -296,14 +76,33 @@ bool waybar::modules::Backlight::handleScroll(GdkEventScroll *e) {
} }
// Fail fast if the proxy could not be initialized // Fail fast if the proxy could not be initialized
if (!login_proxy_) { if (!backend.is_login_proxy_initialized()) {
return true; return true;
} }
// Check scroll direction // Check scroll direction
auto dir = AModule::getScrollDir(e); auto dir = AModule::getScrollDir(e);
if (dir == SCROLL_DIR::NONE) {
return true; // No worries, it will always be set because of the switch below. This is purely to suppress a
// warning
util::ChangeType ct = util::ChangeType::Increase;
switch (dir) {
case SCROLL_DIR::UP:
[[fallthrough]];
case SCROLL_DIR::RIGHT:
ct = util::ChangeType::Increase;
break;
case SCROLL_DIR::DOWN:
[[fallthrough]];
case SCROLL_DIR::LEFT:
ct = util::ChangeType::Decrease;
break;
case SCROLL_DIR::NONE:
return true;
break;
} }
// Get scroll step // Get scroll step
@ -313,38 +112,7 @@ bool waybar::modules::Backlight::handleScroll(GdkEventScroll *e) {
step = config_["scroll-step"].asDouble(); step = config_["scroll-step"].asDouble();
} }
// Get the best device backend.set_brightness(preferred_device_, ct, step);
decltype(devices_) devices;
{
std::scoped_lock<std::mutex> lock(udev_thread_mutex_);
devices = devices_;
}
const auto best = best_device(devices.cbegin(), devices.cend(), preferred_device_);
if (best == nullptr) {
return true;
}
// Compute the absolute step
const auto abs_step = static_cast<int>(round(step * best->get_max() / 100.0f));
// Compute the new value
int new_value = best->get_actual();
if (dir == SCROLL_DIR::UP) {
new_value += abs_step;
} else if (dir == SCROLL_DIR::DOWN) {
new_value -= abs_step;
}
// Clamp the value
new_value = std::clamp(new_value, 0, best->get_max());
// Set the new value
auto call_args = Glib::VariantContainerBase(
g_variant_new("(ssu)", "backlight", std::string(best->name()).c_str(), new_value));
login_proxy_->call_sync("SetBrightness", call_args);
return true; return true;
} }

View File

@ -0,0 +1,23 @@
#include "modules/backlight_slider.hpp"
#include "ASlider.hpp"
namespace waybar::modules {
BacklightSlider::BacklightSlider(const std::string& id, const Json::Value& config)
: ASlider(config, "backlight-slider", id),
interval_(config_["interval"].isUInt() ? config_["interval"].asUInt() : 1000),
preferred_device_(config["device"].isString() ? config["device"].asString() : ""),
backend(interval_, [this] { this->dp.emit(); }) {}
void BacklightSlider::update() {
uint16_t brightness = backend.get_scaled_brightness(preferred_device_);
scale_.set_value(brightness);
}
void BacklightSlider::onValueChanged() {
auto brightness = scale_.get_value();
backend.set_scaled_brightness(preferred_device_, brightness);
}
} // namespace waybar::modules

View File

@ -1,74 +1,12 @@
#include "modules/pulseaudio.hpp" #include "modules/pulseaudio.hpp"
waybar::modules::Pulseaudio::Pulseaudio(const std::string &id, const Json::Value &config) waybar::modules::Pulseaudio::Pulseaudio(const std::string &id, const Json::Value &config)
: ALabel(config, "pulseaudio", id, "{volume}%"), : ALabel(config, "pulseaudio", id, "{volume}%") {
mainloop_(nullptr),
mainloop_api_(nullptr),
context_(nullptr),
sink_idx_(0),
volume_(0),
muted_(false),
source_idx_(0),
source_volume_(0),
source_muted_(false) {
mainloop_ = pa_threaded_mainloop_new();
if (mainloop_ == nullptr) {
throw std::runtime_error("pa_mainloop_new() failed.");
}
pa_threaded_mainloop_lock(mainloop_);
mainloop_api_ = pa_threaded_mainloop_get_api(mainloop_);
context_ = pa_context_new(mainloop_api_, "waybar");
if (context_ == nullptr) {
throw std::runtime_error("pa_context_new() failed.");
}
if (pa_context_connect(context_, nullptr, PA_CONTEXT_NOFAIL, nullptr) < 0) {
auto err =
fmt::format("pa_context_connect() failed: {}", pa_strerror(pa_context_errno(context_)));
throw std::runtime_error(err);
}
pa_context_set_state_callback(context_, contextStateCb, this);
if (pa_threaded_mainloop_start(mainloop_) < 0) {
throw std::runtime_error("pa_mainloop_run() failed.");
}
pa_threaded_mainloop_unlock(mainloop_);
event_box_.add_events(Gdk::SCROLL_MASK | Gdk::SMOOTH_SCROLL_MASK); event_box_.add_events(Gdk::SCROLL_MASK | Gdk::SMOOTH_SCROLL_MASK);
event_box_.signal_scroll_event().connect(sigc::mem_fun(*this, &Pulseaudio::handleScroll)); event_box_.signal_scroll_event().connect(sigc::mem_fun(*this, &Pulseaudio::handleScroll));
}
waybar::modules::Pulseaudio::~Pulseaudio() { backend = util::AudioBackend::getInstance([this] { this->dp.emit(); });
pa_context_disconnect(context_); backend->setIgnoredSinks(config_["ignored-sinks"]);
mainloop_api_->quit(mainloop_api_, 0);
pa_threaded_mainloop_stop(mainloop_);
pa_threaded_mainloop_free(mainloop_);
}
void waybar::modules::Pulseaudio::contextStateCb(pa_context *c, void *data) {
auto pa = static_cast<waybar::modules::Pulseaudio *>(data);
switch (pa_context_get_state(c)) {
case PA_CONTEXT_TERMINATED:
pa->mainloop_api_->quit(pa->mainloop_api_, 0);
break;
case PA_CONTEXT_READY:
pa_context_get_server_info(c, serverInfoCb, data);
pa_context_set_subscribe_callback(c, subscribeCb, data);
pa_context_subscribe(c,
static_cast<enum pa_subscription_mask>(
static_cast<int>(PA_SUBSCRIPTION_MASK_SERVER) |
static_cast<int>(PA_SUBSCRIPTION_MASK_SINK) |
static_cast<int>(PA_SUBSCRIPTION_MASK_SINK_INPUT) |
static_cast<int>(PA_SUBSCRIPTION_MASK_SOURCE) |
static_cast<int>(PA_SUBSCRIPTION_MASK_SOURCE_OUTPUT)),
nullptr, nullptr);
break;
case PA_CONTEXT_FAILED:
pa->mainloop_api_->quit(pa->mainloop_api_, 1);
break;
case PA_CONTEXT_CONNECTING:
case PA_CONTEXT_AUTHORIZING:
case PA_CONTEXT_SETTING_NAME:
default:
break;
}
} }
bool waybar::modules::Pulseaudio::handleScroll(GdkEventScroll *e) { bool waybar::modules::Pulseaudio::handleScroll(GdkEventScroll *e) {
@ -81,9 +19,6 @@ bool waybar::modules::Pulseaudio::handleScroll(GdkEventScroll *e) {
if (dir == SCROLL_DIR::NONE) { if (dir == SCROLL_DIR::NONE) {
return true; return true;
} }
double volume_tick = static_cast<double>(PA_VOLUME_NORM) / 100;
pa_volume_t change = volume_tick;
pa_cvolume pa_volume = pa_volume_;
int max_volume = 100; int max_volume = 100;
double step = 1; double step = 1;
// isDouble returns true for integers as well, just in case // isDouble returns true for integers as well, just in case
@ -91,152 +26,24 @@ bool waybar::modules::Pulseaudio::handleScroll(GdkEventScroll *e) {
step = config_["scroll-step"].asDouble(); step = config_["scroll-step"].asDouble();
} }
if (config_["max-volume"].isInt()) { if (config_["max-volume"].isInt()) {
max_volume = std::min(config_["max-volume"].asInt(), static_cast<int>(PA_VOLUME_UI_MAX)); max_volume = config_["max-volume"].asInt();
} }
if (dir == SCROLL_DIR::UP) { auto change_type = (dir == SCROLL_DIR::UP || dir == SCROLL_DIR::RIGHT)
if (volume_ < max_volume) { ? util::ChangeType::Increase
if (volume_ + step > max_volume) { : util::ChangeType::Decrease;
change = round((max_volume - volume_) * volume_tick);
} else { backend->changeVolume(change_type, step, max_volume);
change = round(step * volume_tick);
}
pa_cvolume_inc(&pa_volume, change);
}
} else if (dir == SCROLL_DIR::DOWN) {
if (volume_ > 0) {
if (volume_ - step < 0) {
change = round(volume_ * volume_tick);
} else {
change = round(step * volume_tick);
}
pa_cvolume_dec(&pa_volume, change);
}
}
pa_context_set_sink_volume_by_index(context_, sink_idx_, &pa_volume, volumeModifyCb, this);
return true; return true;
} }
/*
* Called when an event we subscribed to occurs.
*/
void waybar::modules::Pulseaudio::subscribeCb(pa_context *context,
pa_subscription_event_type_t type, uint32_t idx,
void *data) {
unsigned facility = type & PA_SUBSCRIPTION_EVENT_FACILITY_MASK;
unsigned operation = type & PA_SUBSCRIPTION_EVENT_TYPE_MASK;
if (operation != PA_SUBSCRIPTION_EVENT_CHANGE) {
return;
}
if (facility == PA_SUBSCRIPTION_EVENT_SERVER) {
pa_context_get_server_info(context, serverInfoCb, data);
} else if (facility == PA_SUBSCRIPTION_EVENT_SINK) {
pa_context_get_sink_info_by_index(context, idx, sinkInfoCb, data);
} else if (facility == PA_SUBSCRIPTION_EVENT_SINK_INPUT) {
pa_context_get_sink_info_list(context, sinkInfoCb, data);
} else if (facility == PA_SUBSCRIPTION_EVENT_SOURCE) {
pa_context_get_source_info_by_index(context, idx, sourceInfoCb, data);
} else if (facility == PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT) {
pa_context_get_source_info_list(context, sourceInfoCb, data);
}
}
/*
* Called in response to a volume change request
*/
void waybar::modules::Pulseaudio::volumeModifyCb(pa_context *c, int success, void *data) {
auto pa = static_cast<waybar::modules::Pulseaudio *>(data);
if (success != 0) {
pa_context_get_sink_info_by_index(pa->context_, pa->sink_idx_, sinkInfoCb, data);
}
}
/*
* Called when the requested source information is ready.
*/
void waybar::modules::Pulseaudio::sourceInfoCb(pa_context * /*context*/, const pa_source_info *i,
int /*eol*/, void *data) {
auto pa = static_cast<waybar::modules::Pulseaudio *>(data);
if (i != nullptr && pa->default_source_name_ == i->name) {
auto source_volume = static_cast<float>(pa_cvolume_avg(&(i->volume))) / float{PA_VOLUME_NORM};
pa->source_volume_ = std::round(source_volume * 100.0F);
pa->source_idx_ = i->index;
pa->source_muted_ = i->mute != 0;
pa->source_desc_ = i->description;
pa->source_port_name_ = i->active_port != nullptr ? i->active_port->name : "Unknown";
pa->dp.emit();
}
}
/*
* Called when the requested sink information is ready.
*/
void waybar::modules::Pulseaudio::sinkInfoCb(pa_context * /*context*/, const pa_sink_info *i,
int /*eol*/, void *data) {
if (i == nullptr) return;
auto pa = static_cast<waybar::modules::Pulseaudio *>(data);
if (pa->config_["ignored-sinks"].isArray()) {
for (const auto &ignored_sink : pa->config_["ignored-sinks"]) {
if (ignored_sink.asString() == i->description) {
return;
}
}
}
if (pa->current_sink_name_ == i->name) {
if (i->state != PA_SINK_RUNNING) {
pa->current_sink_running_ = false;
} else {
pa->current_sink_running_ = true;
}
}
if (!pa->current_sink_running_ && i->state == PA_SINK_RUNNING) {
pa->current_sink_name_ = i->name;
pa->current_sink_running_ = true;
}
if (pa->current_sink_name_ == i->name) {
pa->pa_volume_ = i->volume;
float volume = static_cast<float>(pa_cvolume_avg(&(pa->pa_volume_))) / float{PA_VOLUME_NORM};
pa->sink_idx_ = i->index;
pa->volume_ = std::round(volume * 100.0F);
pa->muted_ = i->mute != 0;
pa->desc_ = i->description;
pa->monitor_ = i->monitor_source_name;
pa->port_name_ = i->active_port != nullptr ? i->active_port->name : "Unknown";
if (auto ff = pa_proplist_gets(i->proplist, PA_PROP_DEVICE_FORM_FACTOR)) {
pa->form_factor_ = ff;
} else {
pa->form_factor_ = "";
}
pa->dp.emit();
}
}
/*
* Called when the requested information on the server is ready. This is
* used to find the default PulseAudio sink.
*/
void waybar::modules::Pulseaudio::serverInfoCb(pa_context *context, const pa_server_info *i,
void *data) {
auto pa = static_cast<waybar::modules::Pulseaudio *>(data);
pa->current_sink_name_ = i->default_sink_name;
pa->default_source_name_ = i->default_source_name;
pa_context_get_sink_info_list(context, sinkInfoCb, data);
pa_context_get_source_info_list(context, sourceInfoCb, data);
}
static const std::array<std::string, 9> ports = { static const std::array<std::string, 9> ports = {
"headphone", "speaker", "hdmi", "headset", "hands-free", "portable", "car", "hifi", "phone", "headphone", "speaker", "hdmi", "headset", "hands-free", "portable", "car", "hifi", "phone",
}; };
const std::vector<std::string> waybar::modules::Pulseaudio::getPulseIcon() const { const std::vector<std::string> waybar::modules::Pulseaudio::getPulseIcon() const {
std::vector<std::string> res = {current_sink_name_, default_source_name_}; std::vector<std::string> res = {backend->getCurrentSinkName(), backend->getDefaultSourceName()};
std::string nameLC = port_name_ + form_factor_; std::string nameLC = backend->getSinkPortName() + backend->getFormFactor();
std::transform(nameLC.begin(), nameLC.end(), nameLC.begin(), ::tolower); std::transform(nameLC.begin(), nameLC.end(), nameLC.begin(), ::tolower);
for (auto const &port : ports) { for (auto const &port : ports) {
if (nameLC.find(port) != std::string::npos) { if (nameLC.find(port) != std::string::npos) {
@ -250,17 +57,16 @@ const std::vector<std::string> waybar::modules::Pulseaudio::getPulseIcon() const
auto waybar::modules::Pulseaudio::update() -> void { auto waybar::modules::Pulseaudio::update() -> void {
auto format = format_; auto format = format_;
std::string tooltip_format; std::string tooltip_format;
auto sink_volume = backend->getSinkVolume();
if (!alt_) { if (!alt_) {
std::string format_name = "format"; std::string format_name = "format";
if (monitor_.find("a2dp_sink") != std::string::npos || // PulseAudio if (backend->isBluetooth()) {
monitor_.find("a2dp-sink") != std::string::npos || // PipeWire
monitor_.find("bluez") != std::string::npos) {
format_name = format_name + "-bluetooth"; format_name = format_name + "-bluetooth";
label_.get_style_context()->add_class("bluetooth"); label_.get_style_context()->add_class("bluetooth");
} else { } else {
label_.get_style_context()->remove_class("bluetooth"); label_.get_style_context()->remove_class("bluetooth");
} }
if (muted_) { if (backend->getSinkMuted()) {
// Check muted bluetooth format exist, otherwise fallback to default muted format // Check muted bluetooth format exist, otherwise fallback to default muted format
if (format_name != "format" && !config_[format_name + "-muted"].isString()) { if (format_name != "format" && !config_[format_name + "-muted"].isString()) {
format_name = "format"; format_name = "format";
@ -272,7 +78,7 @@ auto waybar::modules::Pulseaudio::update() -> void {
label_.get_style_context()->remove_class("muted"); label_.get_style_context()->remove_class("muted");
label_.get_style_context()->remove_class("sink-muted"); label_.get_style_context()->remove_class("sink-muted");
} }
auto state = getState(volume_, true); auto state = getState(sink_volume, true);
if (!state.empty() && config_[format_name + "-" + state].isString()) { if (!state.empty() && config_[format_name + "-" + state].isString()) {
format = config_[format_name + "-" + state].asString(); format = config_[format_name + "-" + state].asString();
} else if (config_[format_name].isString()) { } else if (config_[format_name].isString()) {
@ -281,7 +87,7 @@ auto waybar::modules::Pulseaudio::update() -> void {
} }
// TODO: find a better way to split source/sink // TODO: find a better way to split source/sink
std::string format_source = "{volume}%"; std::string format_source = "{volume}%";
if (source_muted_) { if (backend->getSourceMuted()) {
label_.get_style_context()->add_class("source-muted"); label_.get_style_context()->add_class("source-muted");
if (config_["format-source-muted"].isString()) { if (config_["format-source-muted"].isString()) {
format_source = config_["format-source-muted"].asString(); format_source = config_["format-source-muted"].asString();
@ -292,11 +98,16 @@ auto waybar::modules::Pulseaudio::update() -> void {
format_source = config_["format-source"].asString(); format_source = config_["format-source"].asString();
} }
} }
format_source = fmt::format(fmt::runtime(format_source), fmt::arg("volume", source_volume_));
auto source_volume = backend->getSourceVolume();
auto sink_desc = backend->getSinkDesc();
auto source_desc = backend->getSourceDesc();
format_source = fmt::format(fmt::runtime(format_source), fmt::arg("volume", source_volume));
auto text = fmt::format( auto text = fmt::format(
fmt::runtime(format), fmt::arg("desc", desc_), fmt::arg("volume", volume_), fmt::runtime(format), fmt::arg("desc", sink_desc), fmt::arg("volume", sink_volume),
fmt::arg("format_source", format_source), fmt::arg("source_volume", source_volume_), fmt::arg("format_source", format_source), fmt::arg("source_volume", source_volume),
fmt::arg("source_desc", source_desc_), fmt::arg("icon", getIcon(volume_, getPulseIcon()))); fmt::arg("source_desc", source_desc), fmt::arg("icon", getIcon(sink_volume, getPulseIcon())));
if (text.empty()) { if (text.empty()) {
label_.hide(); label_.hide();
} else { } else {
@ -310,12 +121,12 @@ auto waybar::modules::Pulseaudio::update() -> void {
} }
if (!tooltip_format.empty()) { if (!tooltip_format.empty()) {
label_.set_tooltip_text(fmt::format( label_.set_tooltip_text(fmt::format(
fmt::runtime(tooltip_format), fmt::arg("desc", desc_), fmt::arg("volume", volume_), fmt::runtime(tooltip_format), fmt::arg("desc", sink_desc),
fmt::arg("format_source", format_source), fmt::arg("source_volume", source_volume_), fmt::arg("volume", sink_volume), fmt::arg("format_source", format_source),
fmt::arg("source_desc", source_desc_), fmt::arg("source_volume", source_volume), fmt::arg("source_desc", source_desc),
fmt::arg("icon", getIcon(volume_, getPulseIcon())))); fmt::arg("icon", getIcon(sink_volume, getPulseIcon()))));
} else { } else {
label_.set_tooltip_text(desc_); label_.set_tooltip_text(sink_desc);
} }
} }

View File

@ -0,0 +1,82 @@
#include "modules/pulseaudio_slider.hpp"
namespace waybar::modules {
PulseaudioSlider::PulseaudioSlider(const std::string& id, const Json::Value& config)
: ASlider(config, "pulseaudio-slider", id) {
backend = util::AudioBackend::getInstance([this] { this->dp.emit(); });
backend->setIgnoredSinks(config_["ignored-sinks"]);
if (config_["target"].isString()) {
std::string target = config_["target"].asString();
if (target == "sink") {
this->target = PulseaudioSliderTarget::Sink;
} else if (target == "source") {
this->target = PulseaudioSliderTarget::Source;
}
}
}
void PulseaudioSlider::update() {
switch (target) {
case PulseaudioSliderTarget::Sink:
if (backend->getSinkMuted()) {
scale_.set_value(min_);
} else {
scale_.set_value(backend->getSinkVolume());
}
break;
case PulseaudioSliderTarget::Source:
if (backend->getSourceMuted()) {
scale_.set_value(min_);
} else {
scale_.set_value(backend->getSourceVolume());
}
break;
}
}
void PulseaudioSlider::onValueChanged() {
bool is_mute = false;
switch (target) {
case PulseaudioSliderTarget::Sink:
if (backend->getSinkMuted()) {
is_mute = true;
}
break;
case PulseaudioSliderTarget::Source:
if (backend->getSourceMuted()) {
is_mute = true;
}
break;
}
uint16_t volume = scale_.get_value();
if (is_mute) {
// Avoid setting sink/source to volume 0 if the user muted if via another mean.
if (volume == 0) {
return;
}
// If the sink/source is mute, but the user clicked the slider, unmute it!
else {
switch (target) {
case PulseaudioSliderTarget::Sink:
backend->toggleSinkMute(false);
break;
case PulseaudioSliderTarget::Source:
backend->toggleSourceMute(false);
break;
}
}
}
backend->changeVolume(volume, min_, max_);
}
} // namespace waybar::modules

View File

@ -0,0 +1,280 @@
#include "util/audio_backend.hpp"
#include <fmt/core.h>
#include <pulse/error.h>
#include <pulse/subscribe.h>
#include <pulse/volume.h>
#include <algorithm>
#include <cmath>
#include <stdexcept>
namespace waybar::util {
AudioBackend::AudioBackend(std::function<void()> on_updated_cb, private_constructor_tag tag)
: mainloop_(nullptr),
mainloop_api_(nullptr),
context_(nullptr),
sink_idx_(0),
volume_(0),
muted_(false),
source_idx_(0),
source_volume_(0),
source_muted_(false),
on_updated_cb_(on_updated_cb) {
mainloop_ = pa_threaded_mainloop_new();
if (mainloop_ == nullptr) {
throw std::runtime_error("pa_mainloop_new() failed.");
}
pa_threaded_mainloop_lock(mainloop_);
mainloop_api_ = pa_threaded_mainloop_get_api(mainloop_);
context_ = pa_context_new(mainloop_api_, "waybar");
if (context_ == nullptr) {
throw std::runtime_error("pa_context_new() failed.");
}
if (pa_context_connect(context_, nullptr, PA_CONTEXT_NOFAIL, nullptr) < 0) {
auto err =
fmt::format("pa_context_connect() failed: {}", pa_strerror(pa_context_errno(context_)));
throw std::runtime_error(err);
}
pa_context_set_state_callback(context_, contextStateCb, this);
if (pa_threaded_mainloop_start(mainloop_) < 0) {
throw std::runtime_error("pa_mainloop_run() failed.");
}
pa_threaded_mainloop_unlock(mainloop_);
}
AudioBackend::~AudioBackend() {
if (context_ != nullptr) {
pa_context_disconnect(context_);
}
if (mainloop_ != nullptr) {
mainloop_api_->quit(mainloop_api_, 0);
pa_threaded_mainloop_stop(mainloop_);
pa_threaded_mainloop_free(mainloop_);
}
}
std::shared_ptr<AudioBackend> AudioBackend::getInstance(std::function<void()> on_updated_cb) {
private_constructor_tag tag;
return std::make_shared<AudioBackend>(on_updated_cb, tag);
}
void AudioBackend::contextStateCb(pa_context *c, void *data) {
auto backend = static_cast<AudioBackend *>(data);
switch (pa_context_get_state(c)) {
case PA_CONTEXT_TERMINATED:
backend->mainloop_api_->quit(backend->mainloop_api_, 0);
break;
case PA_CONTEXT_READY:
pa_context_get_server_info(c, serverInfoCb, data);
pa_context_set_subscribe_callback(c, subscribeCb, data);
pa_context_subscribe(c,
static_cast<enum pa_subscription_mask>(
static_cast<int>(PA_SUBSCRIPTION_MASK_SERVER) |
static_cast<int>(PA_SUBSCRIPTION_MASK_SINK) |
static_cast<int>(PA_SUBSCRIPTION_MASK_SINK_INPUT) |
static_cast<int>(PA_SUBSCRIPTION_MASK_SOURCE) |
static_cast<int>(PA_SUBSCRIPTION_MASK_SOURCE_OUTPUT)),
nullptr, nullptr);
break;
case PA_CONTEXT_FAILED:
backend->mainloop_api_->quit(backend->mainloop_api_, 1);
break;
case PA_CONTEXT_CONNECTING:
case PA_CONTEXT_AUTHORIZING:
case PA_CONTEXT_SETTING_NAME:
default:
break;
}
}
/*
* Called when an event we subscribed to occurs.
*/
void AudioBackend::subscribeCb(pa_context *context, pa_subscription_event_type_t type, uint32_t idx,
void *data) {
unsigned facility = type & PA_SUBSCRIPTION_EVENT_FACILITY_MASK;
unsigned operation = type & PA_SUBSCRIPTION_EVENT_TYPE_MASK;
if (operation != PA_SUBSCRIPTION_EVENT_CHANGE) {
return;
}
if (facility == PA_SUBSCRIPTION_EVENT_SERVER) {
pa_context_get_server_info(context, serverInfoCb, data);
} else if (facility == PA_SUBSCRIPTION_EVENT_SINK) {
pa_context_get_sink_info_by_index(context, idx, sinkInfoCb, data);
} else if (facility == PA_SUBSCRIPTION_EVENT_SINK_INPUT) {
pa_context_get_sink_info_list(context, sinkInfoCb, data);
} else if (facility == PA_SUBSCRIPTION_EVENT_SOURCE) {
pa_context_get_source_info_by_index(context, idx, sourceInfoCb, data);
} else if (facility == PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT) {
pa_context_get_source_info_list(context, sourceInfoCb, data);
}
}
/*
* Called in response to a volume change request
*/
void AudioBackend::volumeModifyCb(pa_context *c, int success, void *data) {
auto backend = static_cast<AudioBackend *>(data);
if (success != 0) {
pa_context_get_sink_info_by_index(backend->context_, backend->sink_idx_, sinkInfoCb, data);
}
}
/*
* Called when the requested sink information is ready.
*/
void AudioBackend::sinkInfoCb(pa_context * /*context*/, const pa_sink_info *i, int /*eol*/,
void *data) {
if (i == nullptr) return;
auto backend = static_cast<AudioBackend *>(data);
if (!backend->ignored_sinks_.empty()) {
for (const auto &ignored_sink : backend->ignored_sinks_) {
if (ignored_sink == i->description) {
return;
}
}
}
if (backend->current_sink_name_ == i->name) {
if (i->state != PA_SINK_RUNNING) {
backend->current_sink_running_ = false;
} else {
backend->current_sink_running_ = true;
}
}
if (!backend->current_sink_running_ && i->state == PA_SINK_RUNNING) {
backend->current_sink_name_ = i->name;
backend->current_sink_running_ = true;
}
if (backend->current_sink_name_ == i->name) {
backend->pa_volume_ = i->volume;
float volume =
static_cast<float>(pa_cvolume_avg(&(backend->pa_volume_))) / float{PA_VOLUME_NORM};
backend->sink_idx_ = i->index;
backend->volume_ = std::round(volume * 100.0F);
backend->muted_ = i->mute != 0;
backend->desc_ = i->description;
backend->monitor_ = i->monitor_source_name;
backend->port_name_ = i->active_port != nullptr ? i->active_port->name : "Unknown";
if (auto ff = pa_proplist_gets(i->proplist, PA_PROP_DEVICE_FORM_FACTOR)) {
backend->form_factor_ = ff;
} else {
backend->form_factor_ = "";
}
backend->on_updated_cb_();
}
}
/*
* Called when the requested source information is ready.
*/
void AudioBackend::sourceInfoCb(pa_context * /*context*/, const pa_source_info *i, int /*eol*/,
void *data) {
auto backend = static_cast<AudioBackend *>(data);
if (i != nullptr && backend->default_source_name_ == i->name) {
auto source_volume = static_cast<float>(pa_cvolume_avg(&(i->volume))) / float{PA_VOLUME_NORM};
backend->source_volume_ = std::round(source_volume * 100.0F);
backend->source_idx_ = i->index;
backend->source_muted_ = i->mute != 0;
backend->source_desc_ = i->description;
backend->source_port_name_ = i->active_port != nullptr ? i->active_port->name : "Unknown";
backend->on_updated_cb_();
}
}
/*
* Called when the requested information on the server is ready. This is
* used to find the default PulseAudio sink.
*/
void AudioBackend::serverInfoCb(pa_context *context, const pa_server_info *i, void *data) {
auto backend = static_cast<AudioBackend *>(data);
backend->current_sink_name_ = i->default_sink_name;
backend->default_source_name_ = i->default_source_name;
pa_context_get_sink_info_list(context, sinkInfoCb, data);
pa_context_get_source_info_list(context, sourceInfoCb, data);
}
void AudioBackend::changeVolume(uint16_t volume, uint16_t min_volume, uint16_t max_volume) {
double volume_tick = static_cast<double>(PA_VOLUME_NORM) / 100;
pa_cvolume pa_volume = pa_volume_;
volume = std::clamp(volume, min_volume, max_volume);
pa_cvolume_set(&pa_volume, pa_volume_.channels, volume * volume_tick);
pa_context_set_sink_volume_by_index(context_, sink_idx_, &pa_volume, volumeModifyCb, this);
}
void AudioBackend::changeVolume(ChangeType change_type, double step, uint16_t max_volume) {
double volume_tick = static_cast<double>(PA_VOLUME_NORM) / 100;
pa_volume_t change = volume_tick;
pa_cvolume pa_volume = pa_volume_;
max_volume = std::min(max_volume, static_cast<uint16_t>(PA_VOLUME_UI_MAX));
if (change_type == ChangeType::Increase) {
if (volume_ < max_volume) {
if (volume_ + step > max_volume) {
change = round((max_volume - volume_) * volume_tick);
} else {
change = round(step * volume_tick);
}
pa_cvolume_inc(&pa_volume, change);
}
} else if (change_type == ChangeType::Decrease) {
if (volume_ > 0) {
if (volume_ - step < 0) {
change = round(volume_ * volume_tick);
} else {
change = round(step * volume_tick);
}
pa_cvolume_dec(&pa_volume, change);
}
}
pa_context_set_sink_volume_by_index(context_, sink_idx_, &pa_volume, volumeModifyCb, this);
}
void AudioBackend::toggleSinkMute() {
muted_ = !muted_;
pa_context_set_sink_mute_by_index(context_, sink_idx_, muted_, nullptr, nullptr);
}
void AudioBackend::toggleSinkMute(bool mute) {
muted_ = mute;
pa_context_set_sink_mute_by_index(context_, sink_idx_, muted_, nullptr, nullptr);
}
void AudioBackend::toggleSourceMute() {
source_muted_ = !muted_;
pa_context_set_source_mute_by_index(context_, source_idx_, source_muted_, nullptr, nullptr);
}
void AudioBackend::toggleSourceMute(bool mute) {
source_muted_ = mute;
pa_context_set_source_mute_by_index(context_, source_idx_, source_muted_, nullptr, nullptr);
}
bool AudioBackend::isBluetooth() {
return monitor_.find("a2dp_sink") != std::string::npos || // PulseAudio
monitor_.find("a2dp-sink") != std::string::npos || // PipeWire
monitor_.find("bluez") != std::string::npos;
}
void AudioBackend::setIgnoredSinks(const Json::Value &config) {
if (config.isArray()) {
for (const auto &ignored_sink : config) {
if (ignored_sink.isString()) {
ignored_sinks_.push_back(ignored_sink.asString());
}
}
}
}
} // namespace waybar::util

View File

@ -0,0 +1,288 @@
#include "util/backlight_backend.hpp"
#include <fmt/core.h>
#include <spdlog/spdlog.h>
#include <sys/epoll.h>
#include <optional>
namespace {
class FileDescriptor {
public:
explicit FileDescriptor(int fd) : fd_(fd) {}
FileDescriptor(const FileDescriptor &other) = delete;
FileDescriptor(FileDescriptor &&other) noexcept = delete;
FileDescriptor &operator=(const FileDescriptor &other) = delete;
FileDescriptor &operator=(FileDescriptor &&other) noexcept = delete;
~FileDescriptor() {
if (fd_ != -1) {
if (close(fd_) != 0) {
fmt::print(stderr, "Failed to close fd: {}\n", errno);
}
}
}
int get() const { return fd_; }
private:
int fd_;
};
struct UdevDeleter {
void operator()(udev *ptr) { udev_unref(ptr); }
};
struct UdevDeviceDeleter {
void operator()(udev_device *ptr) { udev_device_unref(ptr); }
};
struct UdevEnumerateDeleter {
void operator()(udev_enumerate *ptr) { udev_enumerate_unref(ptr); }
};
struct UdevMonitorDeleter {
void operator()(udev_monitor *ptr) { udev_monitor_unref(ptr); }
};
void check_eq(int rc, int expected, const char *message = "eq, rc was: ") {
if (rc != expected) {
throw std::runtime_error(fmt::format(fmt::runtime(message), rc));
}
}
void check_neq(int rc, int bad_rc, const char *message = "neq, rc was: ") {
if (rc == bad_rc) {
throw std::runtime_error(fmt::format(fmt::runtime(message), rc));
}
}
void check0(int rc, const char *message = "rc wasn't 0") { check_eq(rc, 0, message); }
void check_gte(int rc, int gte, const char *message = "rc was: ") {
if (rc < gte) {
throw std::runtime_error(fmt::format(fmt::runtime(message), rc));
}
}
void check_nn(const void *ptr, const char *message = "ptr was null") {
if (ptr == nullptr) {
throw std::runtime_error(message);
}
}
} // namespace
namespace waybar::util {
BacklightDevice::BacklightDevice(std::string name, int actual, int max, bool powered)
: name_(name), actual_(actual), max_(max), powered_(powered) {}
std::string BacklightDevice::name() const { return name_; }
int BacklightDevice::get_actual() const { return actual_; }
void BacklightDevice::set_actual(int actual) { actual_ = actual; }
int BacklightDevice::get_max() const { return max_; }
void BacklightDevice::set_max(int max) { max_ = max; }
bool BacklightDevice::get_powered() const { return powered_; }
void BacklightDevice::set_powered(bool powered) { powered_ = powered; }
BacklightBackend::BacklightBackend(std::chrono::milliseconds interval,
std::function<void()> on_updated_cb)
: on_updated_cb_(on_updated_cb), polling_interval_(interval), previous_best_({}) {
std::unique_ptr<udev, UdevDeleter> udev_check{udev_new()};
check_nn(udev_check.get(), "Udev check new failed");
enumerate_devices(devices_.begin(), devices_.end(), std::back_inserter(devices_),
udev_check.get());
if (devices_.empty()) {
throw std::runtime_error("No backlight found");
}
// Connect to the login interface
login_proxy_ = Gio::DBus::Proxy::create_for_bus_sync(
Gio::DBus::BusType::BUS_TYPE_SYSTEM, "org.freedesktop.login1",
"/org/freedesktop/login1/session/self", "org.freedesktop.login1.Session");
udev_thread_ = [this] {
std::unique_ptr<udev, UdevDeleter> udev{udev_new()};
check_nn(udev.get(), "Udev new failed");
std::unique_ptr<udev_monitor, UdevMonitorDeleter> mon{
udev_monitor_new_from_netlink(udev.get(), "udev")};
check_nn(mon.get(), "udev monitor new failed");
check_gte(udev_monitor_filter_add_match_subsystem_devtype(mon.get(), "backlight", nullptr), 0,
"udev failed to add monitor filter: ");
udev_monitor_enable_receiving(mon.get());
auto udev_fd = udev_monitor_get_fd(mon.get());
auto epoll_fd = FileDescriptor{epoll_create1(EPOLL_CLOEXEC)};
check_neq(epoll_fd.get(), -1, "epoll init failed: ");
epoll_event ctl_event{};
ctl_event.events = EPOLLIN;
ctl_event.data.fd = udev_fd;
check0(epoll_ctl(epoll_fd.get(), EPOLL_CTL_ADD, ctl_event.data.fd, &ctl_event),
"epoll_ctl failed: {}");
epoll_event events[EPOLL_MAX_EVENTS];
while (udev_thread_.isRunning()) {
const int event_count =
epoll_wait(epoll_fd.get(), events, EPOLL_MAX_EVENTS, this->polling_interval_.count());
if (!udev_thread_.isRunning()) {
break;
}
decltype(devices_) devices;
{
std::scoped_lock<std::mutex> lock(udev_thread_mutex_);
devices = devices_;
}
for (int i = 0; i < event_count; ++i) {
const auto &event = events[i];
check_eq(event.data.fd, udev_fd, "unexpected udev fd");
std::unique_ptr<udev_device, UdevDeviceDeleter> dev{udev_monitor_receive_device(mon.get())};
check_nn(dev.get(), "epoll dev was null");
upsert_device(devices.begin(), devices.end(), std::back_inserter(devices), dev.get());
}
// Refresh state if timed out
if (event_count == 0) {
enumerate_devices(devices.begin(), devices.end(), std::back_inserter(devices), udev.get());
}
{
std::scoped_lock<std::mutex> lock(udev_thread_mutex_);
devices_ = devices;
}
this->on_updated_cb_();
}
};
}
template <class ForwardIt>
const BacklightDevice *BacklightBackend::best_device(ForwardIt first, ForwardIt last,
std::string_view preferred_device) {
const auto found = std::find_if(
first, last, [preferred_device](const auto &dev) { return dev.name() == preferred_device; });
if (found != last) {
return &(*found);
}
const auto max = std::max_element(
first, last, [](const auto &l, const auto &r) { return l.get_max() < r.get_max(); });
return max == last ? nullptr : &(*max);
}
const BacklightDevice *BacklightBackend::get_previous_best_device() {
return previous_best_.has_value() ? &(*previous_best_) : nullptr;
}
void BacklightBackend::set_previous_best_device(const BacklightDevice *device) {
if (device == nullptr) {
previous_best_ = std::nullopt;
} else {
previous_best_ = std::optional{*device};
}
}
void BacklightBackend::set_scaled_brightness(std::string preferred_device, int brightness) {
GET_BEST_DEVICE(best, (*this), preferred_device);
if (best != nullptr) {
const auto max = best->get_max();
const auto abs_val = static_cast<int>(round(brightness * max / 100.0f));
set_brightness_internal(best->name(), abs_val, best->get_max());
}
}
void BacklightBackend::set_brightness(std::string preferred_device, ChangeType change_type,
double step) {
GET_BEST_DEVICE(best, (*this), preferred_device);
if (best != nullptr) {
const auto max = best->get_max();
const auto abs_step = static_cast<int>(round(step * max / 100.0f));
const int new_brightness = change_type == ChangeType::Increase ? best->get_actual() + abs_step
: best->get_actual() - abs_step;
set_brightness_internal(best->name(), new_brightness, max);
}
}
void BacklightBackend::set_brightness_internal(std::string device_name, int brightness,
int max_brightness) {
brightness = std::clamp(brightness, 0, max_brightness);
auto call_args = Glib::VariantContainerBase(
g_variant_new("(ssu)", "backlight", device_name.c_str(), brightness));
login_proxy_->call_sync("SetBrightness", call_args);
}
int BacklightBackend::get_scaled_brightness(std::string preferred_device) {
GET_BEST_DEVICE(best, (*this), preferred_device);
if (best != nullptr) {
return best->get_actual() * 100 / best->get_max();
}
return 0;
}
template <class ForwardIt, class Inserter>
void BacklightBackend::upsert_device(ForwardIt first, ForwardIt last, Inserter inserter,
udev_device *dev) {
const char *name = udev_device_get_sysname(dev);
check_nn(name);
const char *actual_brightness_attr =
strncmp(name, "amdgpu_bl", 9) == 0 || strcmp(name, "apple-panel-bl") == 0
? "brightness"
: "actual_brightness";
const char *actual = udev_device_get_sysattr_value(dev, actual_brightness_attr);
const char *max = udev_device_get_sysattr_value(dev, "max_brightness");
const char *power = udev_device_get_sysattr_value(dev, "bl_power");
auto found =
std::find_if(first, last, [name](const auto &device) { return device.name() == name; });
if (found != last) {
if (actual != nullptr) {
found->set_actual(std::stoi(actual));
}
if (max != nullptr) {
found->set_max(std::stoi(max));
}
if (power != nullptr) {
found->set_powered(std::stoi(power) == 0);
}
} else {
const int actual_int = actual == nullptr ? 0 : std::stoi(actual);
const int max_int = max == nullptr ? 0 : std::stoi(max);
const bool power_bool = power == nullptr ? true : std::stoi(power) == 0;
*inserter = BacklightDevice{name, actual_int, max_int, power_bool};
++inserter;
}
}
template <class ForwardIt, class Inserter>
void BacklightBackend::enumerate_devices(ForwardIt first, ForwardIt last, Inserter inserter,
udev *udev) {
std::unique_ptr<udev_enumerate, UdevEnumerateDeleter> enumerate{udev_enumerate_new(udev)};
udev_enumerate_add_match_subsystem(enumerate.get(), "backlight");
udev_enumerate_scan_devices(enumerate.get());
udev_list_entry *enum_devices = udev_enumerate_get_list_entry(enumerate.get());
udev_list_entry *dev_list_entry;
udev_list_entry_foreach(dev_list_entry, enum_devices) {
const char *path = udev_list_entry_get_name(dev_list_entry);
std::unique_ptr<udev_device, UdevDeviceDeleter> dev{udev_device_new_from_syspath(udev, path)};
check_nn(dev.get(), "dev new failed");
upsert_device(first, last, inserter, dev.get());
}
}
} // namespace waybar::util