Merge pull request #501 from acrisci/keyboard-fixes

misc keyboard fixes

backend/x11/backend.c

@@ -244,6 +244,17 @@ static void wlr_x11_backend_destroy(struct wlr_backend *backend) {
 	struct wlr_x11_output *output = &x11->output;
 	wlr_output_destroy(&output->wlr_output);
 
+	wl_signal_emit(&backend->events.input_remove, &x11->pointer_dev);
+	wl_signal_emit(&backend->events.input_remove, &x11->keyboard_dev);
+	// TODO probably need to use wlr_keyboard_destroy, but the devices need to
+	// be malloced for that to work
+	if (x11->keyboard_dev.keyboard->keymap) {
+		xkb_keymap_unref(x11->keyboard_dev.keyboard->keymap);
+	}
+	if (x11->keyboard_dev.keyboard->xkb_state) {
+		xkb_state_unref(x11->keyboard_dev.keyboard->xkb_state);
+	}
+
 	wl_list_remove(&x11->display_destroy.link);
 
 	wl_event_source_remove(x11->frame_timer);

rootston/keyboard.c

@@ -364,6 +364,7 @@ struct roots_keyboard *roots_keyboard_create(struct wlr_input_device *device,
 	}
 
 	wlr_keyboard_set_keymap(device->keyboard, keymap);
+	xkb_keymap_unref(keymap);
 	xkb_context_unref(context);
 
 	int repeat_rate = (config->repeat_rate > 0) ? config->repeat_rate : 25;

types/wlr_keyboard.c

@@ -118,7 +118,7 @@ void wlr_keyboard_destroy(struct wlr_keyboard *kb) {
 		wl_list_remove(&kb->events.key.listener_list);
 	}
 	xkb_state_unref(kb->xkb_state);
-	xkb_map_unref(kb->keymap);
+	xkb_keymap_unref(kb->keymap);
 	close(kb->keymap_fd);
 	free(kb);
 }
@@ -131,12 +131,21 @@ void wlr_keyboard_led_update(struct wlr_keyboard *kb, uint32_t leds) {
 
 void wlr_keyboard_set_keymap(struct wlr_keyboard *kb,
 		struct xkb_keymap *keymap) {
+	if (kb->keymap) {
+		xkb_keymap_unref(kb->keymap);
+	}
+	xkb_keymap_ref(keymap);
+	kb->keymap = keymap;
+
+	if (kb->xkb_state) {
+		xkb_state_unref(kb->xkb_state);
+	}
+
 	kb->xkb_state = xkb_state_new(kb->keymap);
 	if (kb->xkb_state == NULL) {
 		wlr_log(L_ERROR, "Failed to create XKB state");
 		return;
 	}
-	kb->keymap = keymap;
 
 	const char *led_names[WLR_LED_COUNT] = {
 		XKB_LED_NAME_NUM,
@@ -165,9 +174,18 @@ void wlr_keyboard_set_keymap(struct wlr_keyboard *kb,
 	char *keymap_str = xkb_keymap_get_as_string(kb->keymap,
 		XKB_KEYMAP_FORMAT_TEXT_V1);
 	kb->keymap_size = strlen(keymap_str) + 1;
+	if (kb->keymap_fd) {
+		close(kb->keymap_fd);
+	}
 	kb->keymap_fd = os_create_anonymous_file(kb->keymap_size);
+	if (kb->keymap_fd < 0) {
+		wlr_log(L_ERROR, "creating a keymap file for %lu bytes failed", kb->keymap_size);
+	}
 	void *ptr = mmap(NULL, kb->keymap_size,
 		PROT_READ | PROT_WRITE, MAP_SHARED, kb->keymap_fd, 0);
+	if (ptr == (void*)-1) {
+		wlr_log(L_ERROR, "failed to mmap() %lu bytes", kb->keymap_size);
+	}
 	strcpy(ptr, keymap_str);
 	free(keymap_str);
 

types/wlr_output.c

@@ -301,6 +301,8 @@ void wlr_output_destroy(struct wlr_output *output) {
 	} else {
 		free(output);
 	}
+
+	wl_list_remove(&output->display_destroy.link);
 }
 
 void wlr_output_effective_resolution(struct wlr_output *output,

types/wlr_seat.c

@@ -710,9 +710,12 @@ static void handle_keyboard_keymap(struct wl_listener *listener, void *data) {
 	struct wlr_seat_keyboard_state *state =
 		wl_container_of(listener, state, keyboard_keymap);
 	struct wlr_seat_client *client;
+	struct wlr_keyboard *keyboard = data;
+	if (keyboard == state->keyboard) {
 		wl_list_for_each(client, &state->seat->clients, link) {
 			seat_client_send_keymap(client, state->keyboard);
 		}
+	}
 }
 
 static void handle_keyboard_repeat_info(struct wl_listener *listener,
@@ -736,7 +739,8 @@ void wlr_seat_set_keyboard(struct wlr_seat *seat,
 	// TODO call this on device key event before the event reaches the
 	// compositor and set a pending keyboard and then send the new keyboard
 	// state on the next keyboard notify event.
-	if (seat->keyboard_state.keyboard == device->keyboard) {
+	struct wlr_keyboard *keyboard = (device ? device->keyboard : NULL);
+	if (seat->keyboard_state.keyboard == keyboard) {
 		return;
 	}
 
@@ -747,7 +751,7 @@ void wlr_seat_set_keyboard(struct wlr_seat *seat,
 		seat->keyboard_state.keyboard = NULL;
 	}
 
-	if (device) {
+	if (keyboard) {
 		assert(device->type == WLR_INPUT_DEVICE_KEYBOARD);
 
 		wl_signal_add(&device->events.destroy,
@@ -767,8 +771,9 @@ void wlr_seat_set_keyboard(struct wlr_seat *seat,
 			seat_client_send_repeat_info(client, device->keyboard);
 		}
 
-		seat->keyboard_state.keyboard = device->keyboard;
 	}
+
+	seat->keyboard_state.keyboard = keyboard;
 }
 
 void wlr_seat_keyboard_start_grab(struct wlr_seat *wlr_seat,