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polybar/include/components/screen.hpp
Gregor Best 0eb39c5205
fix: don't restart if zero active screens are reported (#3078)
On laptops and similar devices, RandR sometimes returns zero active
screens, for example when closing a laptop's lid before it suspends.

Don't restart in that case because the new polybar instance will see
zero screens and quit. Instead, just ignore those kind of events.
2024-10-13 13:52:10 +02:00

57 lines
1.2 KiB
C++

#pragma once
#include <utility>
#include "common.hpp"
#include "components/types.hpp"
#include "events/signal_emitter.hpp"
#include "events/signal_fwd.hpp"
#include "x11/extensions/randr.hpp"
#include "x11/types.hpp"
#include "x11/window.hpp"
POLYBAR_NS
// fwd
class config;
class logger;
class connection;
class signal_emitter;
class screen : public xpp::event::sink<evt::map_notify, evt::randr_screen_change_notify> {
public:
using make_type = unique_ptr<screen>;
static make_type make(const config&);
explicit screen(connection& conn, signal_emitter& emitter, const logger& logger, const config& conf);
~screen();
protected:
void handle(const evt::map_notify& evt) override;
void handle(const evt::randr_screen_change_notify& evt) override;
private:
connection& m_connection;
signal_emitter& m_sig;
const logger& m_log;
const config& m_conf;
xcb_window_t m_root;
xcb_window_t m_proxy{XCB_NONE};
vector<monitor_t> m_monitors;
struct size m_size {
0U, 0U
};
bool m_sigraised{false};
/**
* Original event mask on the root window.
* Used to restore event mask after the proxy window is mapped.
*/
uint32_t m_root_mask{0};
std::pair<bool, int> have_monitors_changed() const;
};
POLYBAR_NS_END