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-rw-r--r--tools/gsr-global-hotkeys/README.md21
-rw-r--r--tools/gsr-global-hotkeys/keyboard_event.c57
-rw-r--r--tools/gsr-global-hotkeys/keys.c21
-rw-r--r--tools/gsr-global-hotkeys/keys.h10
4 files changed, 89 insertions, 20 deletions
diff --git a/tools/gsr-global-hotkeys/README.md b/tools/gsr-global-hotkeys/README.md
new file mode 100644
index 0000000..8744107
--- /dev/null
+++ b/tools/gsr-global-hotkeys/README.md
@@ -0,0 +1,21 @@
+# About
+Global hotkeys for X11 and all Wayland compositors by using linux device api. Keyboards are grabbed and only the non-hotkey keys are passed through to the system.
+The program accepts text commands as input. Run the program with the option `--virtual` to only grab virtual devices. This is useful when using keyboard input mapping software such as
+kanata, otherwise kanata may fail to launch or this program may fail to launch.
+# Commands
+## Bind
+To add a key send `bind <action> <keycode+keycode+...><newline>` to the programs stdin, for example:
+```
+bind show_hide 56+44
+
+```
+which will bind alt+z. When alt+z is pressed the program will output `show_hide` (and a newline) to stdout.
+The program only accepts one key for each keybind command but accepts a multiple modifier keys.
+The keybinding requires at least one modifier key (ctrl, alt, super or shift) and a key to be used.
+The keycodes are values from `<linux/input-event-codes.h>` linux api header (which is the same as X11 keycode value minus 8).
+## Unbind
+To unbind all keys send `unbind_all<newline>` to the programs stdin, for example:
+```
+unbind_all
+
+``` \ No newline at end of file
diff --git a/tools/gsr-global-hotkeys/keyboard_event.c b/tools/gsr-global-hotkeys/keyboard_event.c
index b8d94fd..6973d4b 100644
--- a/tools/gsr-global-hotkeys/keyboard_event.c
+++ b/tools/gsr-global-hotkeys/keyboard_event.c
@@ -1,4 +1,5 @@
#include "keyboard_event.h"
+#include "keys.h"
/* C stdlib */
#include <stdio.h>
@@ -81,19 +82,19 @@ static void keyboard_event_fetch_update_key_states(keyboard_event *self, event_e
}
}
-static void keyboard_event_process_key_state_change(keyboard_event *self, struct input_event event, event_extra_data *extra_data, int fd) {
- if(event.type != EV_KEY)
+static void keyboard_event_process_key_state_change(keyboard_event *self, const struct input_event *event, event_extra_data *extra_data, int fd) {
+ if(event->type != EV_KEY)
return;
- if(!extra_data->key_states || event.code >= KEY_STATES_SIZE * 8)
+ if(!extra_data->key_states || event->code >= KEY_STATES_SIZE * 8)
return;
- const unsigned int byte_index = event.code / 8;
- const unsigned char bit_index = event.code % 8;
+ const unsigned int byte_index = event->code / 8;
+ const unsigned char bit_index = event->code % 8;
unsigned char key_byte_state = extra_data->key_states[byte_index];
const bool prev_key_pressed = (key_byte_state & (1 << bit_index)) != KEY_RELEASE;
- if(event.value == KEY_RELEASE) {
+ if(event->value == KEY_RELEASE) {
key_byte_state &= ~(1 << bit_index);
if(prev_key_pressed)
--extra_data->num_keys_pressed;
@@ -171,8 +172,8 @@ static void keyboard_event_process_input_event_data(keyboard_event *self, event_
//fprintf(stderr, "fd: %d, type: %d, pressed %d, value: %d\n", fd, event.type, event.code, event.value);
//}
- if(event.type == EV_KEY) {
- keyboard_event_process_key_state_change(self, event, extra_data, fd);
+ if(event.type == EV_KEY && is_keyboard_key(event.code)) {
+ keyboard_event_process_key_state_change(self, &event, extra_data, fd);
const uint32_t modifier_bit = keycode_to_modifier_bit(event.code);
if(modifier_bit == 0) {
if(keyboard_event_on_key_pressed(self, &event, self->modifier_button_states))
@@ -270,7 +271,8 @@ static bool keyboard_event_try_add_device_if_keyboard(keyboard_event *self, cons
if(dev_input_id == -1)
return false;
- if(self->grab_type == KEYBOARD_GRAB_TYPE_VIRTUAL && !dev_input_is_virtual(dev_input_id))
+ const bool is_virtual_device = dev_input_is_virtual(dev_input_id);
+ if(self->grab_type == KEYBOARD_GRAB_TYPE_VIRTUAL && !is_virtual_device)
return false;
if(keyboard_event_has_event_with_dev_input_fd(self, dev_input_id))
@@ -286,7 +288,7 @@ static bool keyboard_event_try_add_device_if_keyboard(keyboard_event *self, cons
unsigned long evbit = 0;
ioctl(fd, EVIOCGBIT(0, sizeof(evbit)), &evbit);
- const bool is_keyboard = evbit & (1 << EV_KEY);
+ const bool is_keyboard = (evbit & (1 << EV_SYN)) && (evbit & (1 << EV_KEY));
if(is_keyboard && strcmp(device_name, GSR_UI_VIRTUAL_KEYBOARD_NAME) != 0) {
unsigned char key_bits[KEY_MAX/8 + 1] = {0};
@@ -297,7 +299,7 @@ static bool keyboard_event_try_add_device_if_keyboard(keyboard_event *self, cons
//const bool supports_touch_events = key_bits[BTN_TOUCH/8] & (1 << (BTN_TOUCH % 8));
const bool supports_joystick_events = key_bits[BTN_JOYSTICK/8] & (1 << (BTN_JOYSTICK % 8));
const bool supports_wheel_events = key_bits[BTN_WHEEL/8] & (1 << (BTN_WHEEL % 8));
- if(supports_key_events && !supports_mouse_events && !supports_joystick_events && !supports_wheel_events) {
+ if(supports_key_events && (is_virtual_device || (!supports_joystick_events && !supports_wheel_events))) {
unsigned char *key_states = calloc(1, KEY_STATES_SIZE);
if(key_states && self->num_event_polls < MAX_EVENT_POLLS) {
//fprintf(stderr, "%s (%s) supports key inputs\n", dev_input_filepath, device_name);
@@ -314,9 +316,16 @@ static bool keyboard_event_try_add_device_if_keyboard(keyboard_event *self, cons
.num_keys_pressed = 0
};
- keyboard_event_fetch_update_key_states(self, &self->event_extra_data[self->num_event_polls], fd);
- if(self->event_extra_data[self->num_event_polls].num_keys_pressed > 0)
- fprintf(stderr, "Info: device not grabbed yet because some keys are still being pressed: /dev/input/event%d\n", dev_input_id);
+ if(supports_mouse_events || supports_joystick_events || supports_wheel_events) {
+ fprintf(stderr, "Info: device not grabbed yet because it might be a mouse: /dev/input/event%d\n", dev_input_id);
+ fsync(fd);
+ if(ioctl(fd, EVIOCGKEY(KEY_STATES_SIZE), self->event_extra_data[self->num_event_polls].key_states) == -1)
+ fprintf(stderr, "Warning: failed to fetch key states for device: /dev/input/event%d\n", dev_input_id);
+ } else {
+ keyboard_event_fetch_update_key_states(self, &self->event_extra_data[self->num_event_polls], fd);
+ if(self->event_extra_data[self->num_event_polls].num_keys_pressed > 0)
+ fprintf(stderr, "Info: device not grabbed yet because some keys are still being pressed: /dev/input/event%d\n", dev_input_id);
+ }
++self->num_event_polls;
return true;
@@ -389,14 +398,21 @@ static int setup_virtual_keyboard_input(const char *name) {
success &= (ioctl(fd, UI_SET_EVBIT, EV_SYN) != -1);
success &= (ioctl(fd, UI_SET_EVBIT, EV_MSC) != -1);
success &= (ioctl(fd, UI_SET_EVBIT, EV_KEY) != -1);
+ success &= (ioctl(fd, UI_SET_EVBIT, EV_REP) != -1);
+ success &= (ioctl(fd, UI_SET_EVBIT, EV_REL) != -1);
+ success &= (ioctl(fd, UI_SET_EVBIT, EV_LED) != -1);
+
+ success &= (ioctl(fd, UI_SET_MSCBIT, MSC_SCAN) != -1);
for(int i = 1; i < KEY_MAX; ++i) {
- success &= (ioctl(fd, UI_SET_KEYBIT, i) != -1);
+ if(is_keyboard_key(i) || is_mouse_button(i))
+ success &= (ioctl(fd, UI_SET_KEYBIT, i) != -1);
+ }
+ for(int i = 0; i < REL_MAX; ++i) {
+ success &= (ioctl(fd, UI_SET_RELBIT, i) != -1);
+ }
+ for(int i = 0; i < LED_MAX; ++i) {
+ success &= (ioctl(fd, UI_SET_LEDBIT, i) != -1);
}
-
- success &= (ioctl(fd, UI_SET_EVBIT, EV_REL) != -1);
- success &= (ioctl(fd, UI_SET_RELBIT, REL_X) != -1);
- success &= (ioctl(fd, UI_SET_RELBIT, REL_Y) != -1);
- success &= (ioctl(fd, UI_SET_RELBIT, REL_Z) != -1);
// success &= (ioctl(fd, UI_SET_EVBIT, EV_ABS) != -1);
// success &= (ioctl(fd, UI_SET_ABSBIT, ABS_X) != -1);
@@ -507,6 +523,7 @@ void keyboard_event_deinit(keyboard_event *self) {
self->num_global_hotkeys = 0;
if(self->uinput_fd > 0) {
+ ioctl(self->uinput_fd, UI_DEV_DESTROY);
close(self->uinput_fd);
self->uinput_fd = -1;
}
diff --git a/tools/gsr-global-hotkeys/keys.c b/tools/gsr-global-hotkeys/keys.c
new file mode 100644
index 0000000..3b8fc8a
--- /dev/null
+++ b/tools/gsr-global-hotkeys/keys.c
@@ -0,0 +1,21 @@
+#include "keys.h"
+#include <linux/input-event-codes.h>
+
+bool is_keyboard_key(uint32_t keycode) {
+ return (keycode >= KEY_ESC && keycode <= KEY_KPDOT)
+ || (keycode >= KEY_ZENKAKUHANKAKU && keycode <= KEY_F24)
+ || (keycode >= KEY_PLAYCD && keycode <= KEY_MICMUTE)
+ || (keycode >= KEY_OK && keycode <= KEY_IMAGES)
+ || (keycode >= KEY_DEL_EOL && keycode <= KEY_DEL_LINE)
+ || (keycode >= KEY_FN && keycode <= KEY_FN_B)
+ || (keycode >= KEY_BRL_DOT1 && keycode <= KEY_BRL_DOT10)
+ || (keycode >= KEY_NUMERIC_0 && keycode <= KEY_LIGHTS_TOGGLE)
+ || (keycode == KEY_ALS_TOGGLE)
+ || (keycode >= KEY_BUTTONCONFIG && keycode <= KEY_VOICECOMMAND)
+ || (keycode >= KEY_BRIGHTNESS_MIN && keycode <= KEY_BRIGHTNESS_MAX)
+ || (keycode >= KEY_KBDINPUTASSIST_PREV && keycode <= KEY_ONSCREEN_KEYBOARD);
+}
+
+bool is_mouse_button(uint32_t keycode) {
+ return (keycode >= BTN_MOUSE && keycode <= BTN_TASK);
+}
diff --git a/tools/gsr-global-hotkeys/keys.h b/tools/gsr-global-hotkeys/keys.h
new file mode 100644
index 0000000..4f31882
--- /dev/null
+++ b/tools/gsr-global-hotkeys/keys.h
@@ -0,0 +1,10 @@
+#ifndef KEYS_H
+#define KEYS_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+bool is_keyboard_key(uint32_t keycode);
+bool is_mouse_button(uint32_t keycode);
+
+#endif /* KEYS_H */
generated by cgit v1.2.3-70-g09d2 (git 2.48.1) at 2025-02-10 13:58:10 +0000