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polybar/include/components/controller.hpp
patrick96 191fb2972c actions: Integrate input_handler into module
Only modules can now be action handlers.
This also slightly simplifies the controller because we don't need to
keep track of input handlers, we can just use the module list.
2020-11-26 20:53:53 +01:00

145 lines
3.5 KiB
C++

#pragma once
#include <moodycamel/blockingconcurrentqueue.h>
#include <thread>
#include "common.hpp"
#include "components/types.hpp"
#include "events/signal_fwd.hpp"
#include "events/signal_receiver.hpp"
#include "events/types.hpp"
#include "settings.hpp"
#include "utils/file.hpp"
#include "x11/types.hpp"
POLYBAR_NS
// fwd decl {{{
enum class alignment;
class bar;
template <output_policy>
class command;
class config;
class connection;
class inotify_watch;
class ipc;
class logger;
class signal_emitter;
namespace modules {
struct module_interface;
} // namespace modules
using module_t = shared_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, signals::ui::update_background> {
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);
bool on(const signals::ui::update_background& evt);
private:
size_t setup_modules(alignment align);
bool try_forward_legacy_action(const string& cmd);
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;
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
*/
vector<module_t> m_modules;
/**
* \brief Loaded modules grouped by block
*/
modulemap_t m_blocks;
/**
* \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 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