From 2a0782eb02058f6f174590881be5a9f1eccfdc89 Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Mon, 3 Feb 2025 19:58:42 +0100
Subject: Attempt to fix global hotkeys not working on steam deck (grabs keys,
 cant press buttons)

---
 meson.build                               |  1 +
 tools/gsr-global-hotkeys/keyboard_event.c | 12 ++++--------
 tools/gsr-global-hotkeys/keys.c           | 27 +++++++++++++++++++++++++++
 tools/gsr-global-hotkeys/keys.h           | 10 ++++++++++
 4 files changed, 42 insertions(+), 8 deletions(-)
 create mode 100644 tools/gsr-global-hotkeys/keys.c
 create mode 100644 tools/gsr-global-hotkeys/keys.h

diff --git a/meson.build b/meson.build
index 6b8ec4e..2e24abd 100644
--- a/meson.build
+++ b/meson.build
@@ -74,6 +74,7 @@ executable(
     [
         'tools/gsr-global-hotkeys/hotplug.c',
         'tools/gsr-global-hotkeys/keyboard_event.c',
+        'tools/gsr-global-hotkeys/keys.c',
         'tools/gsr-global-hotkeys/main.c'
     ],
     c_args : '-fstack-protector-all',
diff --git a/tools/gsr-global-hotkeys/keyboard_event.c b/tools/gsr-global-hotkeys/keyboard_event.c
index 99f33ee..78a2236 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>
@@ -154,12 +155,6 @@ static uint32_t keycode_to_modifier_bit(uint32_t keycode) {
     return 0;
 }
 
-static bool key_is_mouse_button(uint32_t keycode) {
-    return (keycode >= BTN_MISC && keycode <= BTN_GEAR_UP)
-        || (keycode >= BTN_TRIGGER_HAPPY && keycode <= BTN_TRIGGER_HAPPY40)
-        || (keycode >= BTN_DPAD_UP && keycode <= BTN_DPAD_RIGHT);
-}
-
 static void keyboard_event_process_input_event_data(keyboard_event *self, event_extra_data *extra_data, int fd) {
     struct input_event event;
     if(read(fd, &event, sizeof(event)) != sizeof(event)) {
@@ -177,7 +172,7 @@ 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 && !key_is_mouse_button(event.code)) {
+    if(event.type == EV_KEY && !is_mouse_button(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) {
@@ -408,7 +403,8 @@ static int setup_virtual_keyboard_input(const char *name) {
 
     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_key_or_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);
diff --git a/tools/gsr-global-hotkeys/keys.c b/tools/gsr-global-hotkeys/keys.c
new file mode 100644
index 0000000..c202453
--- /dev/null
+++ b/tools/gsr-global-hotkeys/keys.c
@@ -0,0 +1,27 @@
+#include "keys.h"
+#include <linux/input-event-codes.h>
+
+bool is_key_or_mouse_button(uint32_t keycode) {
+    return (keycode >= KEY_ESC && keycode <= KEY_KPDOT)
+        || (keycode >= KEY_ZENKAKUHANKAKU && keycode <= KEY_F24)
+        || (keycode >= KEY_PLAYCD && keycode <= KEY_MICMUTE)
+        || (keycode >= BTN_MISC && keycode <= BTN_TASK)
+        || (keycode >= BTN_JOYSTICK && keycode <= BTN_THUMBR)
+        || (keycode >= BTN_DIGI && keycode <= BTN_GEAR_UP)
+        || (keycode >= KEY_OK && keycode <= KEY_HANGUP_PHONE)
+        || (keycode >= KEY_DEL_EOL && keycode <= KEY_DEL_LINE)
+        || (keycode >= KEY_FN && keycode <= KEY_FN_RIGHT_SHIFT)
+        || (keycode >= KEY_BRL_DOT1 && keycode <= KEY_BRL_DOT10)
+        || (keycode >= KEY_NUMERIC_0 && keycode <= KEY_LIGHTS_TOGGLE)
+        || (keycode >= BTN_DPAD_UP && keycode <= KEY_BRIGHTNESS_MAX)
+        || (keycode >= KEY_KBDINPUTASSIST_PREV && keycode <= KEY_MACRO30)
+        || (keycode >= KEY_MACRO_RECORD_START && keycode <= KEY_MACRO_PRESET3)
+        || (keycode >= KEY_KBD_LCD_MENU1 && keycode <= KEY_KBD_LCD_MENU5)
+        || (keycode >= BTN_TRIGGER_HAPPY && keycode <= BTN_TRIGGER_HAPPY40);
+}
+
+bool is_mouse_button(uint32_t keycode) {
+    return (keycode >= BTN_MISC && keycode <= BTN_GEAR_UP)
+        || (keycode >= BTN_TRIGGER_HAPPY && keycode <= BTN_TRIGGER_HAPPY40)
+        || (keycode >= BTN_DPAD_UP && keycode <= BTN_DPAD_RIGHT);
+}
diff --git a/tools/gsr-global-hotkeys/keys.h b/tools/gsr-global-hotkeys/keys.h
new file mode 100644
index 0000000..11d0d92
--- /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_key_or_mouse_button(uint32_t keycode);
+bool is_mouse_button(uint32_t keycode);
+
+#endif /* KEYS_H */
-- 
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