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#define _XOPEN_SOURCE 500
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <poll.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <sys/wait.h>
#include <unistd.h>
#include <wayland-client.h>
#include <wlr/util/log.h>
#include "swaybar/render.h"
#include "swaybar/config.h"
#include "swaybar/event_loop.h"
#include "swaybar/bar.h"
#include "swaybar/ipc.h"
#include "ipc-client.h"
#include "list.h"
#include "pango.h"
#include "pool-buffer.h"
#include "wlr-layer-shell-unstable-v1-client-protocol.h"
static void bar_init(struct swaybar *bar) {
bar->config = init_config();
wl_list_init(&bar->outputs);
}
struct swaybar_output *new_output(const char *name) {
struct swaybar_output *output = malloc(sizeof(struct swaybar_output));
output->name = strdup(name);
return output;
}
static void layer_surface_configure(void *data,
struct zwlr_layer_surface_v1 *surface,
uint32_t serial, uint32_t width, uint32_t height) {
struct swaybar_output *output = data;
output->width = width;
output->height = height;
zwlr_layer_surface_v1_ack_configure(surface, serial);
render_frame(output->bar, output);
}
static void layer_surface_closed(void *_output,
struct zwlr_layer_surface_v1 *surface) {
// TODO: Deal with hotplugging
struct swaybar_output *output = output;
zwlr_layer_surface_v1_destroy(output->layer_surface);
wl_surface_destroy(output->surface);
}
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 swaybar *bar = data;
if (strcmp(interface, wl_compositor_interface.name) == 0) {
bar->compositor = wl_registry_bind(registry, name,
&wl_compositor_interface, 1);
} else if (strcmp(interface, wl_shm_interface.name) == 0) {
bar->shm = wl_registry_bind(registry, name,
&wl_shm_interface, 1);
} else if (strcmp(interface, wl_output_interface.name) == 0) {
static size_t index = 0;
struct swaybar_output *output =
calloc(1, sizeof(struct swaybar_output));
output->bar = bar;
output->output = wl_registry_bind(registry, name,
&wl_output_interface, 1);
output->index = index++;
wl_list_init(&output->workspaces);
wl_list_insert(&bar->outputs, &output->link);
} else if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) {
bar->layer_shell = wl_registry_bind(
registry, name, &zwlr_layer_shell_v1_interface, 1);
}
}
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,
};
void bar_setup(struct swaybar *bar,
const char *socket_path, const char *bar_id) {
bar_init(bar);
init_event_loop();
bar->ipc_socketfd = ipc_open_socket(socket_path);
bar->ipc_event_socketfd = ipc_open_socket(socket_path);
ipc_initialize(bar, bar_id);
assert(bar->display = wl_display_connect(NULL));
struct wl_registry *registry = wl_display_get_registry(bar->display);
wl_registry_add_listener(registry, ®istry_listener, bar);
wl_display_roundtrip(bar->display);
assert(bar->compositor && bar->layer_shell && bar->shm);
// TODO: we might not necessarily be meant to do all of the outputs
struct swaybar_output *output;
wl_list_for_each(output, &bar->outputs, link) {
struct config_output *coutput;
wl_list_for_each(coutput, &bar->config->outputs, link) {
if (coutput->index != output->index) {
continue;
}
output->name = strdup(coutput->name);
assert(output->surface = wl_compositor_create_surface(
bar->compositor));
output->layer_surface = zwlr_layer_shell_v1_get_layer_surface(
bar->layer_shell, output->surface, output->output,
ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM, "panel");
assert(output->layer_surface);
zwlr_layer_surface_v1_add_listener(output->layer_surface,
&layer_surface_listener, output);
zwlr_layer_surface_v1_set_anchor(output->layer_surface,
bar->config->position);
break;
}
}
ipc_get_workspaces(bar);
wl_list_for_each(output, &bar->outputs, link) {
render_frame(bar, output);
}
}
static void display_in(int fd, short mask, void *_bar) {
struct swaybar *bar = (struct swaybar *)_bar;
if (wl_display_dispatch(bar->display) == -1) {
wlr_log(L_ERROR, "failed to dispatch wl: %d", errno);
}
}
static void ipc_in(int fd, short mask, void *_bar) {
struct swaybar *bar = (struct swaybar *)_bar;
if (handle_ipc_event(bar)) {
struct swaybar_output *output;
wl_list_for_each(output, &bar->outputs, link) {
render_frame(bar, output);
}
}
}
void bar_run(struct swaybar *bar) {
add_event(wl_display_get_fd(bar->display), POLLIN, display_in, bar);
add_event(bar->ipc_event_socketfd, POLLIN, ipc_in, bar);
while (1) {
event_loop_poll();
}
}
static void free_outputs(struct wl_list *list) {
struct swaybar_output *output, *tmp;
wl_list_for_each_safe(output, tmp, list, link) {
wl_list_remove(&output->link);
free(output->name);
free(output);
}
}
void bar_teardown(struct swaybar *bar) {
free_outputs(&bar->outputs);
if (bar->config) {
free_config(bar->config);
}
}
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