From ebd8c2726b8caac6adc00cf15c5631e51d05ba1f Mon Sep 17 00:00:00 2001 From: dec05eba Date: Mon, 16 Dec 2024 02:21:38 +0100 Subject: Rewrite linux global hotkey to not depend on any libraries (also allows it to work on non-systemd systems(?)), remove unused gsr-window-name --- tools/gsr-global-hotkeys/keyboard_event.h | 63 +++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 tools/gsr-global-hotkeys/keyboard_event.h (limited to 'tools/gsr-global-hotkeys/keyboard_event.h') diff --git a/tools/gsr-global-hotkeys/keyboard_event.h b/tools/gsr-global-hotkeys/keyboard_event.h new file mode 100644 index 0000000..5084659 --- /dev/null +++ b/tools/gsr-global-hotkeys/keyboard_event.h @@ -0,0 +1,63 @@ +#ifndef KEYBOARD_EVENT_H +#define KEYBOARD_EVENT_H + +/* Read keyboard input from linux /dev/input/eventN devices, with hotplug support */ + +#include "hotplug.h" + +/* C stdlib */ +#include +#include + +/* POSIX */ +#include + +/* LINUX */ +#include + +#define MAX_EVENT_POLLS 32 + +typedef enum { + KEYBOARD_MODKEY_ALT = 1 << 0, + KEYBOARD_MODKEY_SUPER = 1 << 1, + KEYBOARD_MODKEY_CTRL = 1 << 2, + KEYBOARD_MODKEY_SHIFT = 1 << 3 +} keyboard_modkeys; + +typedef enum { + KEYBOARD_BUTTON_RELEASED, + KEYBOARD_BUTTON_PRESSED +} keyboard_button_state; + +typedef struct { + struct pollfd event_polls[MAX_EVENT_POLLS]; /* Current size is |num_event_polls| */ + int dev_input_ids[MAX_EVENT_POLLS]; /* Current size is |num_event_polls| */ + int num_event_polls; + + int stdout_event_index; + int hotplug_event_index; + bool stdout_failed; + + hotplug_event hotplug_ev; + + keyboard_button_state lshift_button_state; + keyboard_button_state rshift_button_state; + keyboard_button_state lctrl_button_state; + keyboard_button_state rctrl_button_state; + keyboard_button_state lalt_button_state; + keyboard_button_state ralt_button_state; + keyboard_button_state lmeta_button_state; + keyboard_button_state rmeta_button_state; +} keyboard_event; + +/* |key| is a KEY_ from linux/input-event-codes.h. |modifiers| is a bitmask of keyboard_modkeys. |press_status| is 0 for released, 1 for pressed and 2 for repeat */ +typedef void (*key_callback)(uint32_t key, uint32_t modifiers, int press_status, void *userdata); + +bool keyboard_event_init(keyboard_event *self, bool poll_stdout_error); +void keyboard_event_deinit(keyboard_event *self); + +/* If |timeout_milliseconds| is -1 then wait until an event is received */ +void keyboard_event_poll_events(keyboard_event *self, int timeout_milliseconds, key_callback callback, void *userdata); +bool keyboard_event_stdout_has_failed(keyboard_event *self); + +#endif /* KEYBOARD_EVENT_H */ -- cgit v1.2.3