polybar/include/modules/xbacklight.hpp

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#pragma once
#include "components/config.hpp"
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#include "settings.hpp"
#include "modules/meta/event_handler.hpp"
#include "modules/meta/input_handler.hpp"
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#include "modules/meta/static_module.hpp"
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#include "x11/extensions/randr.hpp"
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POLYBAR_NS
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class connection;
namespace modules {
/**
* Backlight module built using the RandR X extension.
*
* This is built as a replacement for the old backlight
* module that was set up using with inotify watches listening
* for changes to the raw file handle.
*
* This module is alot faster, it's more responsive and it will
* be dormant until new values are reported. Inotify watches
* are a bit random when it comes to proc-/sysfs.
*
* TODO: Implement backlight configuring using scroll events
*/
class xbacklight_module : public static_module<xbacklight_module>,
public event_handler<evt::randr_notify>,
public input_handler {
public:
explicit xbacklight_module(const bar_settings& bar, string name_);
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void update();
string get_output();
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bool build(builder* builder, const string& tag) const;
protected:
void handle(const evt::randr_notify& evt);
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bool input(string&& cmd);
private:
static constexpr const char* TAG_LABEL{"<label>"};
static constexpr const char* TAG_BAR{"<bar>"};
static constexpr const char* TAG_RAMP{"<ramp>"};
static constexpr const char* EVENT_SCROLLUP{"xbacklight+"};
static constexpr const char* EVENT_SCROLLDOWN{"xbacklight-"};
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connection& m_connection;
monitor_t m_output;
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xcb_window_t m_proxy{};
ramp_t m_ramp;
label_t m_label;
progressbar_t m_progressbar;
bool m_scroll{true};
std::atomic<int> m_percentage{0};
};
}
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POLYBAR_NS_END