243 lines
7.6 KiB
C
243 lines
7.6 KiB
C
#include <assert.h>
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#include <inttypes.h>
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#include <stdlib.h>
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#include <util/signal.h>
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#include <wayland-server-core.h>
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#include <wayland-util.h>
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#include <wlr/types/wlr_relative_pointer_v1.h>
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#include <wlr/types/wlr_seat.h>
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#include <wlr/util/log.h>
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#include "relative-pointer-unstable-v1-protocol.h"
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#define RELATIVE_POINTER_MANAGER_VERSION 1
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static const struct zwp_relative_pointer_manager_v1_interface relative_pointer_manager_v1_impl;
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static const struct zwp_relative_pointer_v1_interface relative_pointer_v1_impl;
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/**
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* helper functions
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*/
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struct wlr_relative_pointer_v1 *wlr_relative_pointer_v1_from_resource(struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource, &zwp_relative_pointer_v1_interface,
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&relative_pointer_v1_impl));
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return wl_resource_get_user_data(resource);
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}
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static struct wlr_relative_pointer_manager_v1 *relative_pointer_manager_from_resource(struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource, &zwp_relative_pointer_manager_v1_interface,
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&relative_pointer_manager_v1_impl));
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return wl_resource_get_user_data(resource);
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}
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/**
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* relative_pointer handler functions
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*/
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static void relative_pointer_destroy(struct wlr_relative_pointer_v1 *relative_pointer) {
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wlr_signal_emit_safe(&relative_pointer->events.destroy, relative_pointer);
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wl_list_remove(&relative_pointer->link);
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wl_list_remove(&relative_pointer->seat_destroy.link);
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wl_list_remove(&relative_pointer->pointer_destroy.link);
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wl_resource_set_user_data(relative_pointer->resource, NULL);
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free(relative_pointer);
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}
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static void relative_pointer_v1_handle_resource_destroy(struct wl_resource *resource) {
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struct wlr_relative_pointer_v1 *relative_pointer =
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wlr_relative_pointer_v1_from_resource(resource);
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if (relative_pointer == NULL) {
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return;
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}
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relative_pointer_destroy(relative_pointer);
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}
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static void relative_pointer_v1_handle_destroy(struct wl_client *client,
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struct wl_resource *resource) {
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struct wlr_relative_pointer_v1 *relative_pointer =
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wlr_relative_pointer_v1_from_resource(resource);
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wlr_log(WLR_DEBUG, "relative_pointer_v1 %p released by client %p",
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relative_pointer, client);
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wl_resource_destroy(resource);
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}
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static void relative_pointer_handle_seat_destroy(struct wl_listener *listener,
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void *data) {
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struct wlr_relative_pointer_v1 *relative_pointer =
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wl_container_of(listener, relative_pointer, seat_destroy);
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relative_pointer_destroy(relative_pointer);
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}
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static void relative_pointer_handle_pointer_destroy(struct wl_listener *listener,
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void *data) {
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struct wlr_relative_pointer_v1 *relative_pointer =
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wl_container_of(listener, relative_pointer, pointer_destroy);
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relative_pointer_destroy(relative_pointer);
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}
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/**
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* relative_pointer_manager handler functions
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*/
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static void relative_pointer_manager_v1_handle_destroy(struct wl_client *client,
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struct wl_resource *resource) {
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wl_resource_destroy(resource);
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wlr_log(WLR_DEBUG, "relative_pointer_v1 manager unbound from client %p",
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client);
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}
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static void relative_pointer_manager_v1_handle_get_relative_pointer(struct wl_client *client,
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struct wl_resource *resource, uint32_t id, struct wl_resource *pointer) {
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struct wlr_seat_client *seat_client =
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wlr_seat_client_from_pointer_resource(pointer);
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struct wlr_relative_pointer_v1 *relative_pointer =
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calloc(1, sizeof(struct wlr_relative_pointer_v1));
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if (relative_pointer == NULL) {
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wl_client_post_no_memory(client);
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return;
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}
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struct wl_resource *relative_pointer_resource = wl_resource_create(client,
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&zwp_relative_pointer_v1_interface, wl_resource_get_version(resource), id);
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if (relative_pointer_resource == NULL) {
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free(relative_pointer);
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wl_client_post_no_memory(client);
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return;
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}
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relative_pointer->resource = relative_pointer_resource;
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relative_pointer->seat = seat_client->seat;
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relative_pointer->pointer_resource = pointer;
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wl_signal_init(&relative_pointer->events.destroy);
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wl_resource_set_implementation(relative_pointer_resource, &relative_pointer_v1_impl,
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relative_pointer, relative_pointer_v1_handle_resource_destroy);
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struct wlr_relative_pointer_manager_v1 *manager =
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relative_pointer_manager_from_resource(resource);
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wl_list_insert(&manager->relative_pointers,
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&relative_pointer->link);
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wl_signal_add(&relative_pointer->seat->events.destroy,
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&relative_pointer->seat_destroy);
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relative_pointer->seat_destroy.notify = relative_pointer_handle_seat_destroy;
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wl_resource_add_destroy_listener(relative_pointer->pointer_resource,
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&relative_pointer->pointer_destroy);
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relative_pointer->pointer_destroy.notify = relative_pointer_handle_pointer_destroy;
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wlr_signal_emit_safe(&manager->events.new_relative_pointer,
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relative_pointer);
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wlr_log(WLR_DEBUG, "relative_pointer_v1 %p created for client %p",
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relative_pointer, client);
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}
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static void relative_pointer_manager_v1_bind(struct wl_client *wl_client, void *data,
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uint32_t version, uint32_t id) {
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struct wlr_relative_pointer_manager_v1 *manager = data;
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struct wl_resource *manager_resource = wl_resource_create(wl_client,
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&zwp_relative_pointer_manager_v1_interface, version, id);
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if (manager_resource == NULL) {
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wl_client_post_no_memory(wl_client);
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return;
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}
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wl_resource_set_implementation(manager_resource, &relative_pointer_manager_v1_impl,
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manager, NULL);
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}
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static void handle_display_destroy(struct wl_listener *listener, void *data) {
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struct wlr_relative_pointer_manager_v1 *manager =
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wl_container_of(listener, manager, display_destroy_listener);
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wlr_signal_emit_safe(&manager->events.destroy, manager);
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wl_list_remove(&manager->display_destroy_listener.link);
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wl_global_destroy(manager->global);
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free(manager);
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}
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/**
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* Implementations
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*/
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static const struct zwp_relative_pointer_manager_v1_interface relative_pointer_manager_v1_impl = {
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.destroy = relative_pointer_manager_v1_handle_destroy,
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.get_relative_pointer = relative_pointer_manager_v1_handle_get_relative_pointer,
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};
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static const struct zwp_relative_pointer_v1_interface relative_pointer_v1_impl = {
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.destroy = relative_pointer_v1_handle_destroy,
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};
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/**
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* Public functions
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*/
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struct wlr_relative_pointer_manager_v1 *wlr_relative_pointer_manager_v1_create(struct wl_display *display) {
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struct wlr_relative_pointer_manager_v1 *manager =
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calloc(1, sizeof(struct wlr_relative_pointer_manager_v1));
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if (manager == NULL) {
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return NULL;
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}
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wl_list_init(&manager->relative_pointers);
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manager->global = wl_global_create(display,
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&zwp_relative_pointer_manager_v1_interface, RELATIVE_POINTER_MANAGER_VERSION,
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manager, relative_pointer_manager_v1_bind);
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if (manager->global == NULL) {
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free(manager);
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return NULL;
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}
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wl_signal_init(&manager->events.destroy);
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wl_signal_init(&manager->events.new_relative_pointer);
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manager->display_destroy_listener.notify = handle_display_destroy;
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wl_display_add_destroy_listener(display, &manager->display_destroy_listener);
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return manager;
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}
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void wlr_relative_pointer_manager_v1_send_relative_motion(
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struct wlr_relative_pointer_manager_v1 *manager, struct wlr_seat *seat,
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uint64_t time_usec, double dx, double dy,
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double dx_unaccel, double dy_unaccel) {
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struct wlr_seat_client *focused = seat->pointer_state.focused_client;
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if (focused == NULL) {
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return;
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}
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struct wlr_relative_pointer_v1 *pointer;
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wl_list_for_each(pointer, &manager->relative_pointers, link) {
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struct wlr_seat_client *seat_client =
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wlr_seat_client_from_pointer_resource(pointer->pointer_resource);
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if (seat != pointer->seat || focused != seat_client) {
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continue;
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}
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zwp_relative_pointer_v1_send_relative_motion(pointer->resource,
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(uint32_t)(time_usec >> 32), (uint32_t)time_usec,
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wl_fixed_from_double(dx), wl_fixed_from_double(dy),
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wl_fixed_from_double(dx_unaccel), wl_fixed_from_double(dy_unaccel));
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}
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}
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