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https://repo.dec05eba.com/gpu-screen-recorder-ui
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100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
#ifndef KEYBOARD_EVENT_H
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#define KEYBOARD_EVENT_H
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/* Read keyboard input from linux /dev/input/eventN devices, with hotplug support */
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#include "hotplug.h"
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/* C stdlib */
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#include <stdbool.h>
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#include <stdint.h>
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/* POSIX */
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#include <poll.h>
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#include <pthread.h>
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/* LINUX */
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#include <linux/input-event-codes.h>
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#define MAX_EVENT_POLLS 32
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#define MAX_CLOSE_FDS 256
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#define MAX_GLOBAL_HOTKEYS 40
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typedef enum {
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KEYBOARD_MODKEY_LALT = 1 << 0,
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KEYBOARD_MODKEY_RALT = 1 << 1,
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KEYBOARD_MODKEY_LSUPER = 1 << 2,
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KEYBOARD_MODKEY_RSUPER = 1 << 3,
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KEYBOARD_MODKEY_LCTRL = 1 << 4,
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KEYBOARD_MODKEY_RCTRL = 1 << 5,
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KEYBOARD_MODKEY_LSHIFT = 1 << 6,
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KEYBOARD_MODKEY_RSHIFT = 1 << 7
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} keyboard_modkeys;
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typedef enum {
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KEYBOARD_BUTTON_RELEASED,
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KEYBOARD_BUTTON_PRESSED
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} keyboard_button_state;
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typedef struct {
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int dev_input_id;
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bool grabbed;
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bool is_non_keyboard_device;
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bool is_possibly_non_keyboard_device;
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bool gsr_ui_virtual_keyboard;
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unsigned char *key_states;
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unsigned char *key_presses_grabbed;
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int num_keys_pressed;
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} event_extra_data;
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typedef enum {
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KEYBOARD_GRAB_TYPE_ALL,
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KEYBOARD_GRAB_TYPE_VIRTUAL,
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KEYBOARD_GRAB_TYPE_NO_GRAB
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} keyboard_grab_type;
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typedef struct {
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uint32_t key;
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uint32_t modifiers; /* keyboard_modkeys bitmask */
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char *action;
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} global_hotkey;
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typedef struct {
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struct pollfd event_polls[MAX_EVENT_POLLS]; /* Current size is |num_event_polls| */
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event_extra_data event_extra_data[MAX_EVENT_POLLS]; /* Current size is |num_event_polls| */
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int num_event_polls;
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int hotplug_event_index;
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int uinput_fd;
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int timer_fd;
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bool stdin_failed;
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bool check_grab_lock;
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double uinput_written_time_seconds;
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keyboard_grab_type grab_type;
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pthread_t close_dev_input_fds_thread;
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pthread_mutex_t close_dev_input_mutex;
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int close_fds[MAX_CLOSE_FDS];
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int num_close_fds;
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bool running;
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char stdin_command_data[512];
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int stdin_command_data_size;
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global_hotkey global_hotkeys[MAX_GLOBAL_HOTKEYS];
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int num_global_hotkeys;
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hotplug_event hotplug_ev;
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uint32_t modifier_button_states;
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} keyboard_event;
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bool keyboard_event_init(keyboard_event *self, bool exclusive_grab, keyboard_grab_type grab_type);
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void keyboard_event_deinit(keyboard_event *self);
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/* If |timeout_milliseconds| is -1 then wait until an event is received */
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void keyboard_event_poll_events(keyboard_event *self, int timeout_milliseconds);
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bool keyboard_event_stdin_has_failed(const keyboard_event *self);
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#endif /* KEYBOARD_EVENT_H */
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