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#define _XOPEN_SOURCE 700
#define _POSIX_C_SOURCE 200112L
#include <assert.h>
#include <ctype.h>
#include <fcntl.h>
#include <getopt.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <time.h>
#include <unistd.h>
#include <wayland-client.h>
#include <wlr/util/log.h>
#include "swaylock/seat.h"
#include "swaylock/swaylock.h"
#include "background-image.h"
#include "pool-buffer.h"
#include "cairo.h"
#include "util.h"
#include "wlr-layer-shell-unstable-v1-client-protocol.h"
static void daemonize() {
if (fork() == 0) {
int devnull = open("/dev/null", O_RDWR);
dup2(STDOUT_FILENO, devnull);
dup2(STDERR_FILENO, devnull);
chdir("/");
} else {
exit(0);
}
}
static void render_frame(struct swaylock_context *context) {
struct swaylock_state *state = context->state;
context->current_buffer = get_next_buffer(state->shm,
context->buffers, context->width, context->height);
cairo_t *cairo = context->current_buffer->cairo;
if (state->args.mode == BACKGROUND_MODE_SOLID_COLOR) {
cairo_set_source_u32(cairo, state->args.color);
cairo_paint(cairo);
} else {
render_background_image(cairo, context->image,
state->args.mode, context->width, context->height);
}
wl_surface_attach(context->surface, context->current_buffer->buffer, 0, 0);
wl_surface_damage(context->surface, 0, 0, context->width, context->height);
wl_surface_commit(context->surface);
}
static void layer_surface_configure(void *data,
struct zwlr_layer_surface_v1 *surface,
uint32_t serial, uint32_t width, uint32_t height) {
struct swaylock_context *context = data;
context->width = width;
context->height = height;
zwlr_layer_surface_v1_ack_configure(surface, serial);
render_frame(context);
}
static void layer_surface_closed(void *data,
struct zwlr_layer_surface_v1 *surface) {
struct swaylock_context *context = data;
zwlr_layer_surface_v1_destroy(context->layer_surface);
wl_surface_destroy(context->surface);
context->state->run_display = false;
}
static const struct zwlr_layer_surface_v1_listener layer_surface_listener = {
.configure = layer_surface_configure,
.closed = layer_surface_closed,
};
static void handle_global(void *data, struct wl_registry *registry,
uint32_t name, const char *interface, uint32_t version) {
struct swaylock_state *state = data;
if (strcmp(interface, wl_compositor_interface.name) == 0) {
state->compositor = wl_registry_bind(registry, name,
&wl_compositor_interface, 1);
} else if (strcmp(interface, wl_shm_interface.name) == 0) {
state->shm = wl_registry_bind(registry, name,
&wl_shm_interface, 1);
} else if (strcmp(interface, wl_seat_interface.name) == 0) {
struct wl_seat *seat = wl_registry_bind(
registry, name, &wl_seat_interface, 1);
wl_seat_add_listener(seat, &seat_listener, state);
} else if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) {
state->layer_shell = wl_registry_bind(
registry, name, &zwlr_layer_shell_v1_interface, 1);
} else if (strcmp(interface, wl_output_interface.name) == 0) {
struct swaylock_context *context =
calloc(1, sizeof(struct swaylock_context));
context->state = state;
context->output = wl_registry_bind(registry, name,
&wl_output_interface, 1);
wl_list_insert(&state->contexts, &context->link);
}
}
static void handle_global_remove(void *data, struct wl_registry *registry,
uint32_t name) {
// who cares
}
static const struct wl_registry_listener registry_listener = {
.global = handle_global,
.global_remove = handle_global_remove,
};
static struct swaylock_state state;
static void sigalarm_handler(int sig) {
signal(SIGALRM, SIG_IGN);
// TODO: Hide typing indicator
signal(SIGALRM, sigalarm_handler);
}
int main(int argc, char **argv) {
signal(SIGALRM, sigalarm_handler);
static struct option long_options[] = {
{"help", no_argument, NULL, 'h'},
{"color", required_argument, NULL, 'c'},
{"image", required_argument, NULL, 'i'},
{"scaling", required_argument, NULL, 's'},
{"tiling", no_argument, NULL, 't'},
{"version", no_argument, NULL, 'v'},
{"socket", required_argument, NULL, 'p'},
{"no-unlock-indicator", no_argument, NULL, 'u'},
{"daemonize", no_argument, NULL, 'f'},
{0, 0, 0, 0}
};
const char *usage =
"Usage: swaylock [options...]\n"
"\n"
" -h, --help Show help message and quit.\n"
" -c, --color <rrggbb[aa]> Turn the screen into the given color instead of white.\n"
" -s, --scaling Scaling mode: stretch, fill, fit, center, tile.\n"
" -t, --tiling Same as --scaling=tile.\n"
" -v, --version Show the version number and quit.\n"
" -i, --image [<output>:]<path> Display the given image.\n"
" -u, --no-unlock-indicator Disable the unlock indicator.\n"
" -f, --daemonize Detach from the controlling terminal.\n"
" --socket <socket> Use the specified socket.\n";
struct swaylock_args args = {
.mode = BACKGROUND_MODE_SOLID_COLOR,
.color = 0xFFFFFFFF,
.show_indicator = true,
};
state.args = args;
wlr_log_init(L_DEBUG, NULL);
int c;
while (1) {
int option_index = 0;
c = getopt_long(argc, argv, "hc:i:s:tvuf", long_options, &option_index);
if (c == -1) {
break;
}
switch (c) {
case 'c': {
state.args.color = parse_color(optarg);
state.args.mode = BACKGROUND_MODE_SOLID_COLOR;
break;
}
case 'i':
// TODO
return 1;
case 's':
state.args.mode = parse_background_mode(optarg);
if (state.args.mode == BACKGROUND_MODE_INVALID) {
return 1;
}
break;
case 't':
// TODO
break;
case 'v':
#if defined SWAY_GIT_VERSION && defined SWAY_GIT_BRANCH && defined SWAY_VERSION_DATE
fprintf(stdout, "swaylock version %s (%s, branch \"%s\")\n",
SWAY_GIT_VERSION, SWAY_VERSION_DATE, SWAY_GIT_BRANCH);
#else
fprintf(stdout, "version unknown\n");
#endif
return 0;
case 'u':
state.args.show_indicator = false;
break;
case 'f':
daemonize();
break;
default:
fprintf(stderr, "%s", usage);
return 1;
}
}
wl_list_init(&state.contexts);
state.xkb.context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
assert(state.display = wl_display_connect(NULL));
struct wl_registry *registry = wl_display_get_registry(state.display);
wl_registry_add_listener(registry, ®istry_listener, &state);
wl_display_roundtrip(state.display);
assert(state.compositor && state.layer_shell && state.shm);
if (wl_list_empty(&state.contexts)) {
wlr_log(L_DEBUG, "Exiting - no outputs to show on.");
return 0;
}
struct swaylock_context *context;
wl_list_for_each(context, &state.contexts, link) {
assert(context->surface =
wl_compositor_create_surface(state.compositor));
context->layer_surface = zwlr_layer_shell_v1_get_layer_surface(
state.layer_shell, context->surface, context->output,
ZWLR_LAYER_SHELL_V1_LAYER_OVERLAY, "lockscreen");
assert(context->layer_surface);
zwlr_layer_surface_v1_set_size(context->layer_surface, 0, 0);
zwlr_layer_surface_v1_set_anchor(context->layer_surface,
ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP |
ZWLR_LAYER_SURFACE_V1_ANCHOR_RIGHT |
ZWLR_LAYER_SURFACE_V1_ANCHOR_BOTTOM |
ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT);
zwlr_layer_surface_v1_set_exclusive_zone(context->layer_surface, -1);
zwlr_layer_surface_v1_set_keyboard_interactivity(
context->layer_surface, true);
zwlr_layer_surface_v1_add_listener(context->layer_surface,
&layer_surface_listener, context);
wl_surface_commit(context->surface);
wl_display_roundtrip(state.display);
}
state.run_display = true;
while (wl_display_dispatch(state.display) != -1 && state.run_display) {
// This space intentionally left blank
}
return 0;
}
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