mirror of https://github.com/swaywm/sway.git
304 lines
8.8 KiB
C
304 lines
8.8 KiB
C
#define _XOPEN_SOURCE 500
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#include <assert.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <poll.h>
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#include <signal.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include <wayland-client.h>
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#include <wayland-cursor.h>
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#include <wlr/util/log.h>
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#ifdef __FreeBSD__
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#include <dev/evdev/input-event-codes.h>
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#else
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#include <linux/input-event-codes.h>
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#endif
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#include "swaybar/render.h"
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#include "swaybar/config.h"
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#include "swaybar/event_loop.h"
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#include "swaybar/status_line.h"
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#include "swaybar/bar.h"
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#include "swaybar/ipc.h"
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#include "ipc-client.h"
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#include "list.h"
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#include "pango.h"
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#include "pool-buffer.h"
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#include "wlr-layer-shell-unstable-v1-client-protocol.h"
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static void bar_init(struct swaybar *bar) {
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bar->config = init_config();
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wl_list_init(&bar->outputs);
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}
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struct swaybar_output *new_output(const char *name) {
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struct swaybar_output *output = malloc(sizeof(struct swaybar_output));
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output->name = strdup(name);
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return output;
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}
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static void layer_surface_configure(void *data,
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struct zwlr_layer_surface_v1 *surface,
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uint32_t serial, uint32_t width, uint32_t height) {
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struct swaybar_output *output = data;
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output->width = width;
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output->height = height;
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zwlr_layer_surface_v1_ack_configure(surface, serial);
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render_frame(output->bar, output);
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}
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static void layer_surface_closed(void *_output,
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struct zwlr_layer_surface_v1 *surface) {
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// TODO: Deal with hotplugging
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struct swaybar_output *output = _output;
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zwlr_layer_surface_v1_destroy(output->layer_surface);
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wl_surface_destroy(output->surface);
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}
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struct zwlr_layer_surface_v1_listener layer_surface_listener = {
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.configure = layer_surface_configure,
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.closed = layer_surface_closed,
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};
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static void wl_pointer_enter(void *data, struct wl_pointer *wl_pointer,
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uint32_t serial, struct wl_surface *surface,
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wl_fixed_t surface_x, wl_fixed_t surface_y) {
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struct swaybar *bar = data;
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struct swaybar_pointer *pointer = &bar->pointer;
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wl_surface_attach(pointer->cursor_surface,
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wl_cursor_image_get_buffer(pointer->cursor_image), 0, 0);
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wl_pointer_set_cursor(wl_pointer, serial, pointer->cursor_surface,
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pointer->cursor_image->hotspot_x,
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pointer->cursor_image->hotspot_y);
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wl_surface_commit(pointer->cursor_surface);
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}
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static void wl_pointer_leave(void *data, struct wl_pointer *wl_pointer,
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uint32_t serial, struct wl_surface *surface) {
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// Who cares
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}
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static void wl_pointer_motion(void *data, struct wl_pointer *wl_pointer,
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uint32_t time, wl_fixed_t surface_x, wl_fixed_t surface_y) {
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wlr_log(L_DEBUG, "motion");
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// TODO
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}
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static void wl_pointer_button(void *data, struct wl_pointer *wl_pointer,
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uint32_t serial, uint32_t time, uint32_t button, uint32_t state) {
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wlr_log(L_DEBUG, "button");
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// TODO
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}
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static void wl_pointer_axis(void *data, struct wl_pointer *wl_pointer,
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uint32_t time, uint32_t axis, wl_fixed_t value) {
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wlr_log(L_DEBUG, "axis");
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// TODO
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}
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static void wl_pointer_frame(void *data, struct wl_pointer *wl_pointer) {
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// Who cares
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}
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static void wl_pointer_axis_source(void *data, struct wl_pointer *wl_pointer,
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uint32_t axis_source) {
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// Who cares
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}
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static void wl_pointer_axis_stop(void *data, struct wl_pointer *wl_pointer,
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uint32_t time, uint32_t axis) {
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// Who cares
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}
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static void wl_pointer_axis_discrete(void *data, struct wl_pointer *wl_pointer,
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uint32_t axis, int32_t discrete) {
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// Who cares
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}
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struct wl_pointer_listener pointer_listener = {
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.enter = wl_pointer_enter,
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.leave = wl_pointer_leave,
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.motion = wl_pointer_motion,
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.button = wl_pointer_button,
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.axis = wl_pointer_axis,
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.frame = wl_pointer_frame,
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.axis_source = wl_pointer_axis_source,
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.axis_stop = wl_pointer_axis_stop,
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.axis_discrete = wl_pointer_axis_discrete,
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};
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static void seat_handle_capabilities(void *data, struct wl_seat *wl_seat,
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enum wl_seat_capability caps) {
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struct swaybar *bar = data;
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if ((caps & WL_SEAT_CAPABILITY_POINTER)) {
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bar->pointer.pointer = wl_seat_get_pointer(wl_seat);
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wl_pointer_add_listener(bar->pointer.pointer, &pointer_listener, bar);
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}
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}
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static void seat_handle_name(void *data, struct wl_seat *wl_seat,
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const char *name) {
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// Who cares
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}
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const struct wl_seat_listener seat_listener = {
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.capabilities = seat_handle_capabilities,
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.name = seat_handle_name,
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};
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static void handle_global(void *data, struct wl_registry *registry,
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uint32_t name, const char *interface, uint32_t version) {
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struct swaybar *bar = data;
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if (strcmp(interface, wl_compositor_interface.name) == 0) {
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bar->compositor = wl_registry_bind(registry, name,
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&wl_compositor_interface, 1);
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} else if (strcmp(interface, wl_seat_interface.name) == 0) {
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bar->seat = wl_registry_bind(registry, name,
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&wl_seat_interface, 1);
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wl_seat_add_listener(bar->seat, &seat_listener, bar);
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} else if (strcmp(interface, wl_shm_interface.name) == 0) {
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bar->shm = wl_registry_bind(registry, name,
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&wl_shm_interface, 1);
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} else if (strcmp(interface, wl_output_interface.name) == 0) {
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static size_t index = 0;
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struct swaybar_output *output =
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calloc(1, sizeof(struct swaybar_output));
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output->bar = bar;
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output->output = wl_registry_bind(registry, name,
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&wl_output_interface, 1);
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output->index = index++;
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wl_list_init(&output->workspaces);
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wl_list_insert(&bar->outputs, &output->link);
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} else if (strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) {
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bar->layer_shell = wl_registry_bind(
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registry, name, &zwlr_layer_shell_v1_interface, 1);
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}
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}
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static void handle_global_remove(void *data, struct wl_registry *registry,
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uint32_t name) {
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// who cares
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}
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static const struct wl_registry_listener registry_listener = {
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.global = handle_global,
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.global_remove = handle_global_remove,
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};
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static void render_all_frames(struct swaybar *bar) {
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struct swaybar_output *output;
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wl_list_for_each(output, &bar->outputs, link) {
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render_frame(bar, output);
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}
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}
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void bar_setup(struct swaybar *bar,
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const char *socket_path, const char *bar_id) {
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bar_init(bar);
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init_event_loop();
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bar->ipc_socketfd = ipc_open_socket(socket_path);
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bar->ipc_event_socketfd = ipc_open_socket(socket_path);
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ipc_initialize(bar, bar_id);
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if (bar->config->status_command) {
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bar->status = status_line_init(bar->config->status_command);
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}
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assert(bar->display = wl_display_connect(NULL));
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struct wl_registry *registry = wl_display_get_registry(bar->display);
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wl_registry_add_listener(registry, ®istry_listener, bar);
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wl_display_roundtrip(bar->display);
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assert(bar->compositor && bar->layer_shell && bar->shm);
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struct swaybar_pointer *pointer = &bar->pointer;
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assert(pointer->cursor_theme = wl_cursor_theme_load(NULL, 16, bar->shm));
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struct wl_cursor *cursor;
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assert(cursor = wl_cursor_theme_get_cursor(
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pointer->cursor_theme, "left_ptr"));
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pointer->cursor_image = cursor->images[0];
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assert(pointer->cursor_surface =
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wl_compositor_create_surface(bar->compositor));
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// TODO: we might not necessarily be meant to do all of the outputs
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struct swaybar_output *output;
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wl_list_for_each(output, &bar->outputs, link) {
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struct config_output *coutput;
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wl_list_for_each(coutput, &bar->config->outputs, link) {
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if (coutput->index != output->index) {
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continue;
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}
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output->name = strdup(coutput->name);
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assert(output->surface = wl_compositor_create_surface(
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bar->compositor));
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output->layer_surface = zwlr_layer_shell_v1_get_layer_surface(
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bar->layer_shell, output->surface, output->output,
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ZWLR_LAYER_SHELL_V1_LAYER_BOTTOM, "panel");
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assert(output->layer_surface);
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zwlr_layer_surface_v1_add_listener(output->layer_surface,
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&layer_surface_listener, output);
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zwlr_layer_surface_v1_set_anchor(output->layer_surface,
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bar->config->position);
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break;
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}
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}
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ipc_get_workspaces(bar);
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render_all_frames(bar);
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}
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static void display_in(int fd, short mask, void *_bar) {
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struct swaybar *bar = (struct swaybar *)_bar;
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if (wl_display_dispatch(bar->display) == -1) {
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bar_teardown(bar);
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exit(0);
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}
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}
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static void ipc_in(int fd, short mask, void *_bar) {
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struct swaybar *bar = (struct swaybar *)_bar;
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if (handle_ipc_event(bar)) {
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render_all_frames(bar);
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}
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}
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static void status_in(int fd, short mask, void *_bar) {
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struct swaybar *bar = (struct swaybar *)_bar;
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if (handle_status_readable(bar->status)) {
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render_all_frames(bar);
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}
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}
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void bar_run(struct swaybar *bar) {
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add_event(wl_display_get_fd(bar->display), POLLIN, display_in, bar);
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add_event(bar->ipc_event_socketfd, POLLIN, ipc_in, bar);
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if (bar->status) {
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add_event(bar->status->read_fd, POLLIN, status_in, bar);
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}
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while (1) {
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event_loop_poll();
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}
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}
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static void free_outputs(struct wl_list *list) {
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struct swaybar_output *output, *tmp;
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wl_list_for_each_safe(output, tmp, list, link) {
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wl_list_remove(&output->link);
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free(output->name);
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free(output);
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}
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}
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void bar_teardown(struct swaybar *bar) {
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free_outputs(&bar->outputs);
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if (bar->config) {
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free_config(bar->config);
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}
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close(bar->ipc_event_socketfd);
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close(bar->ipc_socketfd);
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if (bar->status) {
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status_line_free(bar->status);
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}
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}
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