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polybar/include/components/controller.hpp
2017-01-24 10:49:14 +01:00

147 lines
3.6 KiB
C++

#pragma once
#include <moodycamel/blockingconcurrentqueue.h>
#include <thread>
#include "common.hpp"
#include "settings.hpp"
#include "events/signal_fwd.hpp"
#include "events/signal_receiver.hpp"
#include "events/types.hpp"
#include "utils/file.hpp"
#include "x11/types.hpp"
POLYBAR_NS
// fwd decl {{{
enum class alignment;
class bar;
class command;
class config;
class connection;
class inotify_watch;
class ipc;
class logger;
class signal_emitter;
namespace modules {
struct module_interface;
class input_handler;
}
using module_t = unique_ptr<modules::module_interface>;
using modulemap_t = std::map<alignment, vector<module_t>>;
// }}}
class controller : public signal_receiver<SIGN_PRIORITY_CONTROLLER, signals::eventqueue::exit_terminate, signals::eventqueue::exit_reload,
signals::eventqueue::notify_change, signals::eventqueue::notify_forcechange, signals::eventqueue::check_state, signals::ipc::action,
signals::ipc::command, signals::ipc::hook, signals::ui::ready, signals::ui::button_press> {
public:
using make_type = unique_ptr<controller>;
static make_type make(unique_ptr<ipc>&& ipc, unique_ptr<inotify_watch>&& config_watch);
explicit controller(connection&, signal_emitter&, const logger&, const config&, unique_ptr<bar>&&, unique_ptr<ipc>&&,
unique_ptr<inotify_watch>&&);
~controller();
bool run(bool writeback, string snapshot_dst);
bool enqueue(event&& evt);
bool enqueue(string&& input_data);
protected:
void read_events();
void process_eventqueue();
void process_inputdata();
bool process_update(bool force);
bool on(const signals::eventqueue::notify_change& evt);
bool on(const signals::eventqueue::notify_forcechange& evt);
bool on(const signals::eventqueue::exit_terminate& evt);
bool on(const signals::eventqueue::exit_reload& evt);
bool on(const signals::eventqueue::check_state& evt);
bool on(const signals::ui::ready& evt);
bool on(const signals::ui::button_press& evt);
bool on(const signals::ipc::action& evt);
bool on(const signals::ipc::command& evt);
bool on(const signals::ipc::hook& evt);
private:
connection& m_connection;
signal_emitter& m_sig;
const logger& m_log;
const config& m_conf;
unique_ptr<bar> m_bar;
unique_ptr<ipc> m_ipc;
unique_ptr<inotify_watch> m_confwatch;
unique_ptr<command> m_command;
array<unique_ptr<file_descriptor>, 2> m_queuefd{};
/**
* @brief State flag
*/
std::atomic<bool> m_process_events{false};
/**
* @brief Destination path of generated snapshot
*/
string m_snapshot_dst;
/**
* @brief Controls weather the output gets printed to stdout
*/
bool m_writeback{false};
/**
* @brief Internal event queue
*/
moodycamel::BlockingConcurrentQueue<event> m_queue;
/**
* @brief Loaded modules
*/
modulemap_t m_modules;
/**
* @brief Module input handlers
*/
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
*/
std::chrono::milliseconds m_swallow_update{10};
/**
* @brief Time to throttle input events
*/
std::chrono::milliseconds m_swallow_input{30};
/**
* @brief Time of last handled input event
*/
std::chrono::time_point<std::chrono::system_clock, std::chrono::milliseconds> m_lastinput;
/**
* @brief Input data
*/
string m_inputdata;
/**
* @brief Thread for the eventqueue loop
*/
std::thread m_event_thread;
/**
* @brief Misc threads
*/
vector<std::thread> m_threads;
};
POLYBAR_NS_END