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cage: add -x flag to disable XWayland at runtime

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Allows disabling XWayland support at runtime even when the binary was
built with it.
This commit is contained in:
David Cohen 2026-04-02 03:17:08 -05:00
parent 71a33b0443
commit a94cdbec67
2 changed files with 44 additions and 28 deletions
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71
cage.c
View file

@ -248,6 +248,9 @@ usage(FILE *file, const char *cage)
" -m last Use only the last connected output\n"
" -s\t Allow VT switching\n"
" -v\t Show the version number and exit\n"
#if CAGE_HAS_XWAYLAND
" -x\t Disable XWayland\n"
#endif
"\n"
" Use -- when you want to pass arguments to APPLICATION\n",
cage);
@ -256,8 +259,12 @@ usage(FILE *file, const char *cage)
static bool
parse_args(struct cg_server *server, int argc, char *argv[])
{
#if CAGE_HAS_XWAYLAND
server->enable_xwayland = true;
#endif
int c;
while ((c = getopt(argc, argv, "dDhm:sv")) != -1) {
while ((c = getopt(argc, argv, "dDhm:svx")) != -1) {
switch (c) {
case 'd':
server->xdg_decoration = true;
@ -281,6 +288,11 @@ parse_args(struct cg_server *server, int argc, char *argv[])
case 'v':
fprintf(stdout, "Cage version " CAGE_VERSION "\n");
exit(0);
#if CAGE_HAS_XWAYLAND
case 'x':
server->enable_xwayland = false;
break;
#endif
default:
usage(stderr, argv[0]);
return false;
@ -561,35 +573,38 @@ main(int argc, char *argv[])
#if CAGE_HAS_XWAYLAND
struct wlr_xcursor_manager *xcursor_manager = NULL;
struct wlr_xwayland *xwayland = wlr_xwayland_create(server.wl_display, compositor, true);
if (!xwayland) {
wlr_log(WLR_ERROR, "Cannot create XWayland server");
} else {
server.new_xwayland_surface.notify = handle_xwayland_surface_new;
wl_signal_add(&xwayland->events.new_surface, &server.new_xwayland_surface);
xcursor_manager = wlr_xcursor_manager_create(DEFAULT_XCURSOR, XCURSOR_SIZE);
if (!xcursor_manager) {
wlr_log(WLR_ERROR, "Cannot create XWayland XCursor manager");
ret = 1;
goto end;
}
if (setenv("DISPLAY", xwayland->display_name, true) < 0) {
wlr_log_errno(WLR_ERROR,
"Unable to set DISPLAY for XWayland. Clients may not be able to connect");
struct wlr_xwayland *xwayland = NULL;
if (server.enable_xwayland) {
xwayland = wlr_xwayland_create(server.wl_display, compositor, true);
if (!xwayland) {
wlr_log(WLR_ERROR, "Cannot create XWayland server");
} else {
wlr_log(WLR_DEBUG, "XWayland is running on display %s", xwayland->display_name);
}
server.new_xwayland_surface.notify = handle_xwayland_surface_new;
wl_signal_add(&xwayland->events.new_surface, &server.new_xwayland_surface);
if (!wlr_xcursor_manager_load(xcursor_manager, 1)) {
wlr_log(WLR_ERROR, "Cannot load XWayland XCursor theme");
}
struct wlr_xcursor *xcursor = wlr_xcursor_manager_get_xcursor(xcursor_manager, DEFAULT_XCURSOR, 1);
if (xcursor) {
struct wlr_xcursor_image *image = xcursor->images[0];
wlr_xwayland_set_cursor(xwayland, wlr_xcursor_image_get_buffer(image), image->hotspot_x,
image->hotspot_y);
xcursor_manager = wlr_xcursor_manager_create(DEFAULT_XCURSOR, XCURSOR_SIZE);
if (!xcursor_manager) {
wlr_log(WLR_ERROR, "Cannot create XWayland XCursor manager");
ret = 1;
goto end;
}
if (setenv("DISPLAY", xwayland->display_name, true) < 0) {
wlr_log_errno(WLR_ERROR,
"Unable to set DISPLAY for XWayland. Clients may not be able to connect");
} else {
wlr_log(WLR_DEBUG, "XWayland is running on display %s", xwayland->display_name);
}
if (!wlr_xcursor_manager_load(xcursor_manager, 1)) {
wlr_log(WLR_ERROR, "Cannot load XWayland XCursor theme");
}
struct wlr_xcursor *xcursor = wlr_xcursor_manager_get_xcursor(xcursor_manager, DEFAULT_XCURSOR, 1);
if (xcursor) {
struct wlr_xcursor_image *image = xcursor->images[0];
wlr_xwayland_set_cursor(xwayland, wlr_xcursor_image_get_buffer(image), image->hotspot_x,
image->hotspot_y);
}
}
}
#endif

1
server.h
View file

@ -72,6 +72,7 @@ struct cg_server {
bool xdg_decoration;
bool allow_vt_switch;
bool enable_xwayland;
bool return_app_code;
bool terminated;
enum wlr_log_importance log_level;