Differentiate between raw and translated keysyms

include/input/keyboard.h

@@ -8,6 +8,8 @@
 #ifndef KIWMI_INPUT_KEYBOARD_H
 #define KIWMI_INPUT_KEYBOARD_H
 
+#include <stdint.h>
+
 #include <wayland-server.h>
 #include <xkbcommon/xkbcommon.h>
 
@@ -27,8 +29,11 @@ struct kiwmi_keyboard {
 };
 
 struct kiwmi_keyboard_key_event {
-    const xkb_keysym_t *syms;
-    int nsyms;
+    const xkb_keysym_t *raw_syms;
+    const xkb_keysym_t *translated_syms;
+    int raw_syms_len;
+    int translated_syms_len;
+    uint32_t keycode;
     struct kiwmi_keyboard *keyboard;
     bool handled;
 };

kiwmi/input/keyboard.c

@@ -59,22 +59,34 @@ keyboard_key_notify(struct wl_listener *listener, void *data)
     struct kiwmi_keyboard *keyboard = wl_container_of(listener, keyboard, key);
     struct kiwmi_server *server     = keyboard->server;
     struct wlr_event_keyboard_key *event = data;
+    struct wlr_input_device *device      = keyboard->device;
 
     uint32_t keycode = event->keycode + 8;
-    const xkb_keysym_t *syms;
-    int nsyms = xkb_state_key_get_syms(
-        keyboard->device->keyboard->xkb_state, keycode, &syms);
+
+    const xkb_keysym_t *raw_syms;
+    xkb_layout_index_t layout_index =
+        xkb_state_key_get_layout(device->keyboard->xkb_state, keycode);
+    int raw_syms_len = xkb_keymap_key_get_syms_by_level(
+        device->keyboard->keymap, keycode, layout_index, 0, &raw_syms);
+
+    const xkb_keysym_t *translated_syms;
+    int translated_syms_len = xkb_state_key_get_syms(
+        keyboard->device->keyboard->xkb_state, keycode, &translated_syms);
 
     bool handled = false;
 
     if (event->state == WLR_KEY_PRESSED) {
-        handled = switch_vt(syms, nsyms, server->backend);
+        handled =
+            switch_vt(translated_syms, translated_syms_len, server->backend);
     }
 
     if (!handled) {
         struct kiwmi_keyboard_key_event data = {
-            .syms     = syms,
-            .nsyms    = nsyms,
+            .raw_syms            = raw_syms,
+            .translated_syms     = translated_syms,
+            .raw_syms_len        = raw_syms_len,
+            .translated_syms_len = translated_syms_len,
+            .keycode             = keycode,
             .keyboard            = keyboard,
             .handled             = false,
         };

kiwmi/luak/kiwmi_keyboard.c

@@ -7,6 +7,8 @@
 
 #include "luak/kiwmi_keyboard.h"
 
+#include <stdint.h>
+
 #include <lauxlib.h>
 #include <wayland-server.h>
 #include <wlr/types/wlr_input_device.h>
@@ -145,27 +147,19 @@ kiwmi_keyboard_on_destroy_notify(struct wl_listener *listener, void *data)
     }
 }
 
-static void
-kiwmi_keyboard_on_key_down_or_up_notify(
-    struct wl_listener *listener,
-    void *data)
+static bool
+send_key_event(
+    struct kiwmi_lua_callback *lc,
+    xkb_keysym_t sym,
+    uint32_t keycode,
+    struct kiwmi_keyboard *keyboard,
+    bool raw)
 {
-    struct kiwmi_lua_callback *lc = wl_container_of(listener, lc, listener);
     struct kiwmi_server *server = lc->server;
     lua_State *L                = server->lua->L;
-    struct kiwmi_keyboard_key_event *event = data;
-    struct kiwmi_keyboard *keyboard        = event->keyboard;
 
-    const xkb_keysym_t *syms = event->syms;
-    int nsyms                = event->nsyms;
-
-    char keysym_name[64];
-
-    for (int i = 0; i < nsyms; ++i) {
-        xkb_keysym_t sym = syms[i];
-
-        size_t namelen =
-            xkb_keysym_get_name(sym, keysym_name, sizeof(keysym_name));
+    static char keysym_name[64];
+    size_t namelen = xkb_keysym_get_name(sym, keysym_name, sizeof(keysym_name));
 
     namelen = namelen > sizeof(keysym_name) ? sizeof(keysym_name) : namelen;
 
@@ -176,25 +170,65 @@ kiwmi_keyboard_on_key_down_or_up_notify(
     lua_pushlstring(L, keysym_name, namelen);
     lua_setfield(L, -2, "key");
 
+    lua_pushnumber(L, keycode);
+    lua_setfield(L, -2, "keycode");
+
+    lua_pushboolean(L, raw);
+    lua_setfield(L, -2, "raw");
+
     lua_pushcfunction(L, luaK_kiwmi_keyboard_new);
     lua_pushlightuserdata(L, server->lua);
     lua_pushlightuserdata(L, keyboard);
     if (lua_pcall(L, 2, 1, 0)) {
         wlr_log(WLR_ERROR, "%s", lua_tostring(L, -1));
         lua_pop(L, 1);
-            return;
+        return false;
     }
     lua_setfield(L, -2, "keyboard");
 
     if (lua_pcall(L, 1, 1, 0)) {
         wlr_log(WLR_ERROR, "%s", lua_tostring(L, -1));
         lua_pop(L, 1);
-            return;
+        return false;
     }
 
-        event->handled |= lua_toboolean(L, -1);
+    bool handled = lua_toboolean(L, -1);
     lua_pop(L, 1);
+    return handled;
 }
+
+static void
+kiwmi_keyboard_on_key_down_or_up_notify(
+    struct wl_listener *listener,
+    void *data)
+{
+    struct kiwmi_lua_callback *lc = wl_container_of(listener, lc, listener);
+    struct kiwmi_keyboard_key_event *event = data;
+    struct kiwmi_keyboard *keyboard        = event->keyboard;
+
+    const xkb_keysym_t *raw_syms = event->raw_syms;
+    int raw_syms_len             = event->raw_syms_len;
+
+    const xkb_keysym_t *translated_syms = event->translated_syms;
+    int translated_syms_len             = event->translated_syms_len;
+
+    uint32_t keycode = event->keycode;
+
+    bool handled = false;
+
+    for (int i = 0; i < translated_syms_len; ++i) {
+        xkb_keysym_t sym = translated_syms[i];
+        handled |= send_key_event(lc, sym, keycode, keyboard, false);
+    }
+
+    if (!handled) {
+        for (int i = 0; i < raw_syms_len; ++i) {
+            xkb_keysym_t sym = raw_syms[i];
+            handled |= send_key_event(lc, sym, keycode, keyboard, true);
+        }
+    }
+
+    event->handled = handled;
 }
 
 static int

lua_docs.md

@@ -139,7 +139,10 @@ Callback receives the keyboard.
 #### key_down
 
 A key got pressed.
-Callback receives a table containing the `key` and the `keyboard`).
+
+Callback receives a table containing the `key`, `keycode`, `raw`, and the `keyboard`.
+
+This event gets triggered twice, once with mods applied (i.e. `Shift+3` is `#`) and `raw` set to `false`, and then again with no mods applied and `raw` set to `true`.
 
 The callback is supposed to return `true` if the event was handled.
 The compositor will not forward it to the focused view in that case.
@@ -147,7 +150,9 @@ The compositor will not forward it to the focused view in that case.
 #### key_up
 
 A key got released.
-Callback receives a table containing the `key` and the `keyboard`).
+Callback receives a table containing the `key`, `keycode`, `raw`, and the `keyboard`.
+
+This event gets triggered twice, once with mods applied (i.e. `Shift+3` is `#`) and `raw` set to `false`, and then again with no mods applied and `raw` set to `true`.
 
 The callback is supposed to return `true` if the event was handled.
 The compositor will not forward it to the focused view in that case.