From 44b2bf18f0918bb44032daee0b42765d4bd2581f Mon Sep 17 00:00:00 2001
From: Timidger <APragmaticPlace@gmail.com>
Date: Mon, 16 Apr 2018 20:13:02 -0400
Subject: [PATCH] Can now quit the simple example

---
 examples/simple.c | 77 +++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 75 insertions(+), 2 deletions(-)

diff --git a/examples/simple.c b/examples/simple.c
index 8303e2c7a..801dd9d76 100644
--- a/examples/simple.c
+++ b/examples/simple.c
@@ -9,11 +9,14 @@
 #include <wlr/backend.h>
 #include <wlr/backend/session.h>
 #include <wlr/types/wlr_output.h>
+#include <wlr/types/wlr_input_device.h>
 #include <wlr/util/log.h>
 #include <xkbcommon/xkbcommon.h>
 
 struct sample_state {
+	struct wl_display *display;
 	struct wl_listener new_output;
+	struct wl_listener new_input;
 	struct timespec last_frame;
 	float color[3];
 	int dec;
@@ -26,6 +29,13 @@ struct sample_output {
 	struct wl_listener destroy;
 };
 
+struct sample_keyboard {
+	struct sample_state *sample;
+	struct wlr_input_device *device;
+	struct wl_listener key;
+	struct wl_listener destroy;
+};
+
 
 void output_frame_notify(struct wl_listener *listener, void *data) {
 	struct sample_output *sample_output = wl_container_of(listener, sample_output, frame);
@@ -58,6 +68,7 @@ void output_frame_notify(struct wl_listener *listener, void *data) {
 void output_remove_notify(struct wl_listener *listener, void *data) {
 	struct sample_output *sample_output = wl_container_of(listener, sample_output, destroy);
 	wl_list_remove(&sample_output->frame.link);
+	wl_list_remove(&sample_output->destroy.link);
 	free(sample_output);
 }
 
@@ -73,20 +84,82 @@ void new_output_notify(struct wl_listener *listener, void *data) {
 	sample_output->destroy.notify = output_remove_notify;
 }
 
+void keyboard_key_notify(struct wl_listener *listener, void *data) {
+	struct sample_keyboard *keyboard = wl_container_of(listener, keyboard, key);
+	struct sample_state *sample = keyboard->sample;
+	struct wlr_event_keyboard_key *event = data;
+	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);
+	for (int i = 0; i < nsyms; i++) {
+		xkb_keysym_t sym = syms[i];
+		if (sym == XKB_KEY_Escape) {
+				wl_display_terminate(sample->display);
+			}
+	}
+	// TODO keyboard input
+}
+
+void keyboard_destroy_notify(struct wl_listener *listener, void *data) {
+	struct sample_keyboard *keyboard = wl_container_of(listener, keyboard, destroy);
+	wl_list_remove(&keyboard->destroy.link);
+	wl_list_remove(&keyboard->key.link);
+	free(keyboard);
+}
+
+void new_input_notify(struct wl_listener *listener, void *data) {
+	struct wlr_input_device *device = data;
+	struct sample_state *sample = wl_container_of(listener, sample, new_input);
+	struct sample_keyboard *keyboard;
+	struct xkb_rule_names rules;
+	struct xkb_context *context;
+	switch (device->type) {
+	case WLR_INPUT_DEVICE_KEYBOARD:
+		keyboard = calloc(1, sizeof(struct sample_keyboard));
+		keyboard->device = device;
+		keyboard->sample = sample;
+		wl_signal_add(&device->events.destroy, &keyboard->destroy);
+		keyboard->destroy.notify = keyboard_destroy_notify;
+		wl_signal_add(&device->keyboard->events.key, &keyboard->key);
+		keyboard->key.notify = keyboard_key_notify;
+		memset(&rules, 0, sizeof(rules));
+		rules.rules = getenv("XKB_DEFAULT_RULES");
+		rules.model = getenv("XKB_DEFAULT_MODEL");
+		rules.layout = getenv("XKB_DEFAULT_LAYOUT");
+		rules.variant = getenv("XKB_DEFAULT_VARIANT");
+		rules.options = getenv("XKB_DEFAULT_OPTIONS");
+		context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
+		if (!context) {
+			wlr_log(L_ERROR, "Failed to create XKB context");
+			exit(1);
+		}
+		wlr_keyboard_set_keymap(device->keyboard, xkb_map_new_from_names(context,
+					&rules, XKB_KEYMAP_COMPILE_NO_FLAGS));
+		xkb_context_unref(context);
+		break;
+	default:
+		break;
+	}
+}
+
 int main() {
 	wlr_log_init(L_DEBUG, NULL);
+	struct wl_display *display = wl_display_create();
 	struct sample_state state = {
 		.color = { 1.0, 0.0, 0.0 },
 		.dec = 0,
-		.last_frame = { 0 }
+		.last_frame = { 0 },
+		.display = display
 	};
-	struct wl_display *display = wl_display_create();
 	struct wlr_backend *wlr = wlr_backend_autocreate(display);
 	if (!wlr) {
 		exit(1);
 	}
 	wl_signal_add(&wlr->events.new_output, &state.new_output);
 	state.new_output.notify = new_output_notify;
+	wl_signal_add(&wlr->events.new_input, &state.new_input);
+	state.new_input.notify = new_input_notify;
 	clock_gettime(CLOCK_MONOTONIC, &state.last_frame);
 	const char *socket = wl_display_add_socket_auto(display);
 	if (!socket) {