polybar/include/components/controller.hpp

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#pragma once
#include <moodycamel/blockingconcurrentqueue.h>
#include <thread>
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#include "common.hpp"
#include "events/signal_fwd.hpp"
#include "events/signal_receiver.hpp"
#include "events/types.hpp"
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#include "x11/types.hpp"
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#include "x11/events.hpp"
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POLYBAR_NS
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// fwd decl {{{
enum class alignment : uint8_t;
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class bar;
class command;
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class config;
class connection;
class inotify_watch;
class ipc;
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class logger;
class signal_emitter;
namespace modules {
struct module_interface;
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class input_handler;
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}
using module_t = unique_ptr<modules::module_interface>;
using modulemap_t = std::map<alignment, vector<module_t>>;
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// }}}
using std::thread;
namespace chrono = std::chrono;
using namespace std::chrono_literals;
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namespace sig_ev = signals::eventqueue;
namespace sig_ui = signals::ui;
namespace sig_ipc = signals::ipc;
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class controller : public signal_receiver<SIGN_PRIORITY_CONTROLLER, sig_ev::exit_terminate, sig_ev::exit_reload,
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sig_ev::update, sig_ev::notify_change, sig_ev::check_state, sig_ipc::action, sig_ipc::command,
sig_ipc::hook, sig_ui::button_press> {
public:
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using make_type = unique_ptr<controller>;
static make_type make(unique_ptr<ipc>&& ipc, unique_ptr<inotify_watch>&& config_watch);
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explicit controller(connection&, signal_emitter&, const logger&, const config&, unique_ptr<bar>&&, unique_ptr<ipc>&&,
unique_ptr<inotify_watch>&&);
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~controller();
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bool run(bool writeback = false);
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bool enqueue(event&& evt);
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bool enqueue(string&& input);
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protected:
void read_events();
void process_eventqueue();
void process_inputdata();
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bool on(const sig_ev::notify_change& evt);
bool on(const sig_ev::update& evt);
bool on(const sig_ev::exit_terminate& evt);
bool on(const sig_ev::exit_reload& evt);
bool on(const sig_ev::check_state& evt);
bool on(const sig_ui::button_press& evt);
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bool on(const sig_ipc::action& evt);
bool on(const sig_ipc::command& evt);
bool on(const sig_ipc::hook& evt);
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private:
connection& m_connection;
signal_emitter& m_sig;
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const logger& m_log;
const config& m_conf;
unique_ptr<bar> m_bar;
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unique_ptr<ipc> m_ipc;
unique_ptr<inotify_watch> m_confwatch;
unique_ptr<command> m_command;
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unique_ptr<file_descriptor> m_fdevent_rd;
unique_ptr<file_descriptor> m_fdevent_wr;
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thread m_event_thread;
/**
* @brief Controls weather the output gets printed to stdout
*/
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bool m_writeback{false};
/**
* @brief Internal event queue
*/
using queue_t = moodycamel::BlockingConcurrentQueue<event>;
queue_t m_queue;
/**
* @brief Loaded modules
*/
modulemap_t m_modules;
/**
* @brief Module input handlers
*/
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vector<modules::input_handler*> m_inputhandlers;
/**
* @brief Maximum number of subsequent events to swallow
*/
size_t m_swallow_limit{5U};
/**
* @brief Time to wait for subsequent events
*/
chrono::milliseconds m_swallow_update{10ms};
/**
* @brief Time to throttle input events
*/
chrono::milliseconds m_swallow_input{30ms};
/**
* @brief Time of last handled input event
*/
chrono::time_point<chrono::system_clock, chrono::milliseconds> m_lastinput;
/**
* @brief Input data
*/
string m_inputdata;
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};
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POLYBAR_NS_END