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#define _POSIX_C_SOURCE 200809L
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdlib.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
#include <wlr/types/wlr_seat.h>
#include <wlr/util/log.h>
#include <wlr/xwayland/shell.h>
#include <wlr/xwayland/xwayland.h>
#include "sockets.h"
#include "xwayland/xwm.h"
struct wlr_xwayland_cursor {
uint8_t *pixels;
uint32_t stride;
uint32_t width;
uint32_t height;
int32_t hotspot_x;
int32_t hotspot_y;
};
static void handle_server_destroy(struct wl_listener *listener, void *data) {
struct wlr_xwayland *xwayland =
wl_container_of(listener, xwayland, server_destroy);
// Server is being destroyed so avoid destroying it once again.
xwayland->server = NULL;
wlr_xwayland_destroy(xwayland);
}
static void handle_server_start(struct wl_listener *listener, void *data) {
struct wlr_xwayland *xwayland =
wl_container_of(listener, xwayland, server_start);
if (xwayland->shell_v1 != NULL) {
wlr_xwayland_shell_v1_set_client(xwayland->shell_v1, xwayland->server->client);
}
}
static void xwayland_mark_ready(struct wlr_xwayland *xwayland) {
assert(xwayland->server->wm_fd[0] >= 0);
xwayland->xwm = xwm_create(xwayland, xwayland->server->wm_fd[0]);
if (!xwayland->xwm) {
return;
}
if (xwayland->seat) {
xwm_set_seat(xwayland->xwm, xwayland->seat);
}
if (xwayland->cursor != NULL) {
struct wlr_xwayland_cursor *cur = xwayland->cursor;
xwm_set_cursor(xwayland->xwm, cur->pixels, cur->stride, cur->width,
cur->height, cur->hotspot_x, cur->hotspot_y);
}
wl_signal_emit_mutable(&xwayland->events.ready, NULL);
}
static void handle_server_ready(struct wl_listener *listener, void *data) {
struct wlr_xwayland *xwayland =
wl_container_of(listener, xwayland, server_ready);
xwayland_mark_ready(xwayland);
}
static void handle_shell_destroy(struct wl_listener *listener, void *data) {
struct wlr_xwayland *xwayland =
wl_container_of(listener, xwayland, shell_destroy);
xwayland->shell_v1 = NULL;
}
void wlr_xwayland_destroy(struct wlr_xwayland *xwayland) {
if (!xwayland) {
return;
}
wl_list_remove(&xwayland->server_destroy.link);
wl_list_remove(&xwayland->server_start.link);
wl_list_remove(&xwayland->server_ready.link);
wl_list_remove(&xwayland->shell_destroy.link);
free(xwayland->cursor);
wlr_xwayland_set_seat(xwayland, NULL);
if (xwayland->own_server) {
wlr_xwayland_server_destroy(xwayland->server);
}
xwayland->server = NULL;
wlr_xwayland_shell_v1_destroy(xwayland->shell_v1);
free(xwayland);
}
struct wlr_xwayland *wlr_xwayland_create_with_server(struct wl_display *wl_display,
struct wlr_compositor *compositor, struct wlr_xwayland_server *server) {
struct wlr_xwayland *xwayland = calloc(1, sizeof(*xwayland));
if (!xwayland) {
return NULL;
}
xwayland->wl_display = wl_display;
xwayland->compositor = compositor;
wl_signal_init(&xwayland->events.new_surface);
wl_signal_init(&xwayland->events.ready);
wl_signal_init(&xwayland->events.remove_startup_info);
xwayland->server = server;
xwayland->display_name = xwayland->server->display_name;
xwayland->server_destroy.notify = handle_server_destroy;
wl_signal_add(&xwayland->server->events.destroy, &xwayland->server_destroy);
xwayland->server_start.notify = handle_server_start;
wl_signal_add(&xwayland->server->events.start, &xwayland->server_start);
xwayland->server_ready.notify = handle_server_ready;
wl_signal_add(&xwayland->server->events.ready, &xwayland->server_ready);
wl_list_init(&xwayland->shell_destroy.link);
if (server->ready) {
xwayland_mark_ready(xwayland);
}
return xwayland;
}
struct wlr_xwayland *wlr_xwayland_create(struct wl_display *wl_display,
struct wlr_compositor *compositor, bool lazy) {
struct wlr_xwayland_shell_v1 *shell_v1 = wlr_xwayland_shell_v1_create(wl_display, 1);
if (shell_v1 == NULL) {
return NULL;
}
struct wlr_xwayland_server_options options = {
.lazy = lazy,
.enable_wm = true,
#if HAVE_XCB_XFIXES_SET_CLIENT_DISCONNECT_MODE
.terminate_delay = lazy ? 10 : 0,
#endif
};
struct wlr_xwayland_server *server = wlr_xwayland_server_create(wl_display, &options);
if (server == NULL) {
goto error_shell_v1;
}
struct wlr_xwayland *xwayland = wlr_xwayland_create_with_server(wl_display, compositor, server);
if (xwayland == NULL) {
goto error_server;
}
xwayland->shell_v1 = shell_v1;
xwayland->own_server = true;
xwayland->shell_destroy.notify = handle_shell_destroy;
wl_signal_add(&xwayland->shell_v1->events.destroy, &xwayland->shell_destroy);
return xwayland;
error_server:
wlr_xwayland_server_destroy(server);
error_shell_v1:
wlr_xwayland_shell_v1_destroy(shell_v1);
return NULL;
}
void wlr_xwayland_set_cursor(struct wlr_xwayland *xwayland,
uint8_t *pixels, uint32_t stride, uint32_t width, uint32_t height,
int32_t hotspot_x, int32_t hotspot_y) {
if (xwayland->xwm != NULL) {
xwm_set_cursor(xwayland->xwm, pixels, stride, width, height,
hotspot_x, hotspot_y);
return;
}
free(xwayland->cursor);
xwayland->cursor = calloc(1, sizeof(*xwayland->cursor));
if (xwayland->cursor == NULL) {
return;
}
xwayland->cursor->pixels = pixels;
xwayland->cursor->stride = stride;
xwayland->cursor->width = width;
xwayland->cursor->height = height;
xwayland->cursor->hotspot_x = hotspot_x;
xwayland->cursor->hotspot_y = hotspot_y;
}
static void xwayland_handle_seat_destroy(struct wl_listener *listener,
void *data) {
struct wlr_xwayland *xwayland =
wl_container_of(listener, xwayland, seat_destroy);
wlr_xwayland_set_seat(xwayland, NULL);
}
void wlr_xwayland_set_seat(struct wlr_xwayland *xwayland,
struct wlr_seat *seat) {
if (xwayland->seat) {
wl_list_remove(&xwayland->seat_destroy.link);
}
xwayland->seat = seat;
if (xwayland->xwm) {
xwm_set_seat(xwayland->xwm, seat);
}
if (seat == NULL) {
return;
}
xwayland->seat_destroy.notify = xwayland_handle_seat_destroy;
wl_signal_add(&seat->events.destroy, &xwayland->seat_destroy);
}
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