From f23baade916e844b6b6c9714e6b5d81020f6ba57 Mon Sep 17 00:00:00 2001
From: Riley Beckett <rbeckettvt@gmail.com>
Date: Fri, 10 Oct 2025 20:31:37 -0400
Subject: minimal layer surface code

---
 keyboard.c | 96 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100644 keyboard.c

(limited to 'keyboard.c')

diff --git a/keyboard.c b/keyboard.c
new file mode 100644
index 0000000..ab208c2
--- /dev/null
+++ b/keyboard.c
@@ -0,0 +1,96 @@
+#include <assert.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <wayland-client-protocol.h>
+#include <locale.h>
+#include "state.h"
+
+void wl_keyboard_keymap(void *data, struct wl_keyboard *wl_keyboard,
+                        uint32_t format, int32_t fd, uint32_t size) {
+    client_state* state = data;
+
+    if (format != WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1) {
+        fprintf(stderr, "unknown keyboard format");
+		state->running = false;
+		return;
+    }
+
+    char* buffer = mmap(NULL, size, PROT_READ, MAP_PRIVATE, fd, 0);
+    if (buffer == MAP_FAILED) {
+        fprintf(stderr, "Failed to mmap keymap");
+		state->running = false;
+        return;
+    }
+
+    state->xkb_context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
+    if (!state->xkb_context) {
+        fprintf(stderr, "Failed to create xkb context\n");
+		state->running = false;
+        return;
+    }
+
+    state->xkb_keymap = xkb_keymap_new_from_buffer(state->xkb_context, buffer, size - 1,
+                                                   XKB_KEYMAP_FORMAT_TEXT_V1,
+                                                   XKB_KEYMAP_COMPILE_NO_FLAGS);
+    munmap(buffer, size);
+    close(fd);
+
+    state->xkb_state = xkb_state_new(state->xkb_keymap);
+    if (!state->xkb_state) {
+        fprintf(stderr, "Failed to create state");
+    }
+
+    struct xkb_compose_table* xkb_compose_table = xkb_compose_table_new_from_locale(
+        state->xkb_context, setlocale(LC_CTYPE, NULL), XKB_COMPOSE_COMPILE_NO_FLAGS);
+
+    if (!xkb_compose_table) {
+        fprintf(stderr, "Failed to create xkb compose table");
+        return;
+    }
+
+    state->xkb_compose_state = xkb_compose_state_new(xkb_compose_table, XKB_COMPOSE_STATE_NO_FLAGS);
+}
+
+void wl_keyboard_enter(void *data, struct wl_keyboard *wl_keyboard,
+                       uint32_t serial, struct wl_surface *surface,
+                       struct wl_array *keys) {
+}
+
+void wl_keyboard_leave(void *data, struct wl_keyboard *wl_keyboard,
+                       uint32_t serial, struct wl_surface *surface) {
+}
+
+void wl_keyboard_key(void *data, struct wl_keyboard *wl_keyboard,
+                     uint32_t serial, uint32_t time, uint32_t key,
+                     uint32_t key_state) {
+  client_state *state = data;
+
+  xkb_keysym_t keysym = xkb_state_key_get_one_sym(state->xkb_state, key + 8);
+  if (keysym == XKB_KEY_q) {
+    state->running = false;
+  }
+}
+
+void wl_keyboard_modifiers(void *data, struct wl_keyboard *wl_keyboard,
+                           uint32_t serial, uint32_t mods_depressed,
+                           uint32_t mods_latched, uint32_t mods_locked,
+                           uint32_t group) {
+    client_state* state = data;
+    xkb_state_update_mask(state->xkb_state, mods_depressed, mods_latched, mods_locked, 0, 0, group);
+}
+
+void wl_keyboard_repeat_info(void *data, struct wl_keyboard *wl_keyboard,
+                             int32_t rate, int32_t delay) {
+    client_state* state = data;
+    state->key_repeat_rate = rate;
+    state->key_repeat_delay = delay;
+}
+
+struct wl_keyboard_listener keyboard_listener = {
+    .keymap = wl_keyboard_keymap,
+    .enter = wl_keyboard_enter,
+    .leave = wl_keyboard_leave,
+    .key = wl_keyboard_key,
+    .modifiers = wl_keyboard_modifiers,
+    .repeat_info = wl_keyboard_repeat_info,
+};
-- 
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