mirror of
https://github.com/swaywm/sway.git
synced 2024-10-02 15:42:53 +00:00
bc9b93f597
Use of busyloop caused high cpu usage for sway because swaybar had to be redrawn all the time. By using select instead the bar only has to be redrawn when the status_command changes (i.e. every second) or when the workspaces are updated. Fix #345
515 lines
15 KiB
C
515 lines
15 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <unistd.h>
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#include <sys/select.h>
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#include <errno.h>
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#include <json-c/json.h>
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#include <sys/un.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <getopt.h>
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#include "ipc-client.h"
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#include "client/registry.h"
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#include "client/window.h"
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#include "client/pango.h"
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#include "stringop.h"
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#include "log.h"
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#define MARGIN 5
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struct box_colors {
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uint32_t border;
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uint32_t background;
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uint32_t text;
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};
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struct colors {
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uint32_t background;
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uint32_t statusline;
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uint32_t separator;
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struct box_colors focused_workspace;
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struct box_colors active_workspace;
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struct box_colors inactive_workspace;
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struct box_colors urgent_workspace;
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struct box_colors binding_mode;
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};
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struct workspace {
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int num;
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char *name;
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bool focused;
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bool visible;
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bool urgent;
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};
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list_t *workspaces = NULL;
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int socketfd;
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pid_t pid;
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int pipefd[2];
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FILE *command;
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char line[1024];
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char *output, *status_command;
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struct registry *registry;
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struct window *window;
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bool dirty = true;
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struct colors colors = {
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.background = 0x000000FF,
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.statusline = 0xFFFFFFFF,
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.separator = 0x666666FF,
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.focused_workspace = {
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.border = 0x4C7899FF,
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.background = 0x285577FF,
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.text = 0xFFFFFFFF
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},
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.active_workspace = {
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.border = 0x333333FF,
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.background = 0x5F676AFF,
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.text = 0xFFFFFFFF
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},
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.inactive_workspace = {
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.border = 0x333333FF,
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.background = 0x222222FF,
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.text = 0x888888FF
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},
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.urgent_workspace = {
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.border = 0x2F343AFF,
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.background = 0x900000FF,
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.text = 0xFFFFFFFF
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},
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.binding_mode = {
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.border = 0x2F343AFF,
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.background = 0x900000FF,
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.text = 0xFFFFFFFF
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},
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};
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void sway_terminate(void) {
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window_teardown(window);
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if (registry) {
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registry_teardown(registry);
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}
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if (command) {
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fclose(command);
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}
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if (pid) {
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// terminate status_command process
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kill(pid, SIGTERM);
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}
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if (pipefd[0]) {
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close(pipefd[0]);
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}
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exit(EXIT_FAILURE);
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}
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void cairo_set_source_u32(cairo_t *cairo, uint32_t color) {
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cairo_set_source_rgba(cairo,
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((color & 0xFF000000) >> 24) / 256.0,
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((color & 0xFF0000) >> 16) / 256.0,
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((color & 0xFF00) >> 8) / 256.0,
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(color & 0xFF) / 256.0);
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}
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void ipc_update_workspaces() {
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if (workspaces) {
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free_flat_list(workspaces);
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}
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workspaces = create_list();
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uint32_t len = 0;
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char *res = ipc_single_command(socketfd, IPC_GET_WORKSPACES, NULL, &len);
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json_object *results = json_tokener_parse(res);
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if (!results) {
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free(res);
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return;
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}
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int i;
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for (i = 0; i < json_object_array_length(results); ++i) {
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json_object *ws_json = json_object_array_get_idx(results, i);
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json_object *num, *name, *visible, *focused, *out, *urgent;
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if (!ws_json) {
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return;
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}
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json_object_object_get_ex(ws_json, "num", &num);
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json_object_object_get_ex(ws_json, "name", &name);
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json_object_object_get_ex(ws_json, "visible", &visible);
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json_object_object_get_ex(ws_json, "focused", &focused);
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json_object_object_get_ex(ws_json, "output", &out);
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json_object_object_get_ex(ws_json, "urgent", &urgent);
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if (strcmp(json_object_get_string(out), output) == 0) {
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struct workspace *ws = malloc(sizeof(struct workspace));
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ws->num = json_object_get_int(num);
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ws->name = strdup(json_object_get_string(name));
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ws->visible = json_object_get_boolean(visible);
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ws->focused = json_object_get_boolean(focused);
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ws->urgent = json_object_get_boolean(urgent);
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list_add(workspaces, ws);
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}
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}
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json_object_put(results);
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free(res);
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}
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uint32_t parse_color(const char *color) {
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if (color[0] != '#') {
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sway_abort("Invalid color %s", color);
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}
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char *end;
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uint32_t res = (uint32_t)strtol(color + 1, &end, 16);
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if (strlen(color) == 7) {
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res = (res << 8) | 0xFF;
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}
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return res;
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}
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uint32_t parse_position(const char *position) {
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if (strcmp("top", position) == 0) {
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return DESKTOP_SHELL_PANEL_POSITION_TOP;
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} else if (strcmp("bottom", position) == 0) {
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return DESKTOP_SHELL_PANEL_POSITION_BOTTOM;
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} else if (strcmp("left", position) == 0) {
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return DESKTOP_SHELL_PANEL_POSITION_LEFT;
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} else if (strcmp("right", position) == 0) {
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return DESKTOP_SHELL_PANEL_POSITION_RIGHT;
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} else {
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return DESKTOP_SHELL_PANEL_POSITION_BOTTOM;
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}
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}
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void bar_ipc_init(int outputi, const char *bar_id) {
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uint32_t len = 0;
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char *res = ipc_single_command(socketfd, IPC_GET_OUTPUTS, NULL, &len);
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json_object *outputs = json_tokener_parse(res);
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json_object *info = json_object_array_get_idx(outputs, outputi);
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json_object *name;
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json_object_object_get_ex(info, "name", &name);
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output = strdup(json_object_get_string(name));
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free(res);
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json_object_put(outputs);
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len = strlen(bar_id);
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res = ipc_single_command(socketfd, IPC_GET_BAR_CONFIG, bar_id, &len);
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json_object *bar_config = json_tokener_parse(res);
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json_object *tray_output, *mode, *hidden_state, *position, *_status_command;
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json_object *font, *bar_height, *workspace_buttons, *strip_workspace_numbers;
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json_object *binding_mode_indicator, *verbose, *_colors;
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json_object_object_get_ex(bar_config, "tray_output", &tray_output);
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json_object_object_get_ex(bar_config, "mode", &mode);
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json_object_object_get_ex(bar_config, "hidden_state", &hidden_state);
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json_object_object_get_ex(bar_config, "position", &position);
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json_object_object_get_ex(bar_config, "status_command", &_status_command);
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json_object_object_get_ex(bar_config, "font", &font);
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json_object_object_get_ex(bar_config, "bar_height", &bar_height);
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json_object_object_get_ex(bar_config, "workspace_buttons", &workspace_buttons);
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json_object_object_get_ex(bar_config, "strip_workspace_numbers", &strip_workspace_numbers);
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json_object_object_get_ex(bar_config, "binding_mode_indicator", &binding_mode_indicator);
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json_object_object_get_ex(bar_config, "verbose", &verbose);
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json_object_object_get_ex(bar_config, "colors", &_colors);
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// TODO: More of these options
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// TODO: Refactor swaybar into several files, create a bar config struct (shared with compositor?)
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if (_status_command) {
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status_command = strdup(json_object_get_string(_status_command));
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}
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if (position) {
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desktop_shell_set_panel_position(registry->desktop_shell, parse_position(json_object_get_string(position)));
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}
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if (_colors) {
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json_object *background, *statusline, *separator;
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json_object *focused_workspace_border, *focused_workspace_bg, *focused_workspace_text;
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json_object *inactive_workspace_border, *inactive_workspace_bg, *inactive_workspace_text;
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json_object *active_workspace_border, *active_workspace_bg, *active_workspace_text;
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json_object *urgent_workspace_border, *urgent_workspace_bg, *urgent_workspace_text;
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json_object *binding_mode_border, *binding_mode_bg, *binding_mode_text;
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json_object_object_get_ex(_colors, "background", &background);
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json_object_object_get_ex(_colors, "statusline", &statusline);
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json_object_object_get_ex(_colors, "separator", &separator);
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json_object_object_get_ex(_colors, "focused_workspace_border", &focused_workspace_border);
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json_object_object_get_ex(_colors, "focused_workspace_bg", &focused_workspace_bg);
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json_object_object_get_ex(_colors, "focused_workspace_text", &focused_workspace_text);
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json_object_object_get_ex(_colors, "active_workspace_border", &active_workspace_border);
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json_object_object_get_ex(_colors, "active_workspace_bg", &active_workspace_bg);
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json_object_object_get_ex(_colors, "active_workspace_text", &active_workspace_text);
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json_object_object_get_ex(_colors, "inactive_workspace_border", &inactive_workspace_border);
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json_object_object_get_ex(_colors, "inactive_workspace_bg", &inactive_workspace_bg);
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json_object_object_get_ex(_colors, "inactive_workspace_text", &inactive_workspace_text);
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json_object_object_get_ex(_colors, "urgent_workspace_border", &urgent_workspace_border);
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json_object_object_get_ex(_colors, "urgent_workspace_bg", &urgent_workspace_bg);
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json_object_object_get_ex(_colors, "urgent_workspace_text", &urgent_workspace_text);
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json_object_object_get_ex(_colors, "binding_mode_border", &binding_mode_border);
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json_object_object_get_ex(_colors, "binding_mode_bg", &binding_mode_bg);
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json_object_object_get_ex(_colors, "binding_mode_text", &binding_mode_text);
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if (background) colors.background = parse_color(json_object_get_string(background));
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if (statusline) colors.statusline = parse_color(json_object_get_string(statusline));
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if (separator) colors.separator = parse_color(json_object_get_string(separator));
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if (focused_workspace_border) {
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colors.focused_workspace.border = parse_color(json_object_get_string(focused_workspace_border));
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}
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if (focused_workspace_bg) {
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colors.focused_workspace.background = parse_color(json_object_get_string(focused_workspace_bg));
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}
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if (focused_workspace_text) {
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colors.focused_workspace.text = parse_color(json_object_get_string(focused_workspace_text));
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}
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if (active_workspace_border) {
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colors.active_workspace.border = parse_color(json_object_get_string(active_workspace_border));
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}
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if (active_workspace_bg) {
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colors.active_workspace.background = parse_color(json_object_get_string(active_workspace_bg));
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}
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if (active_workspace_text) {
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colors.active_workspace.text = parse_color(json_object_get_string(active_workspace_text));
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}
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if (inactive_workspace_border) {
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colors.inactive_workspace.border = parse_color(json_object_get_string(inactive_workspace_border));
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}
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if (inactive_workspace_bg) {
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colors.inactive_workspace.background = parse_color(json_object_get_string(inactive_workspace_bg));
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}
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if (inactive_workspace_text) {
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colors.inactive_workspace.text = parse_color(json_object_get_string(inactive_workspace_text));
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}
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if (binding_mode_border) {
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colors.binding_mode.border = parse_color(json_object_get_string(binding_mode_border));
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}
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if (binding_mode_bg) {
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colors.binding_mode.background = parse_color(json_object_get_string(binding_mode_bg));
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}
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if (binding_mode_text) {
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colors.binding_mode.text = parse_color(json_object_get_string(binding_mode_text));
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}
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}
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json_object_put(bar_config);
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free(res);
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const char *subscribe_json = "[ \"workspace\" ]";
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len = strlen(subscribe_json);
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res = ipc_single_command(socketfd, IPC_SUBSCRIBE, subscribe_json, &len);
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ipc_update_workspaces();
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}
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void render() {
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// Clear
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cairo_save(window->cairo);
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cairo_set_operator(window->cairo, CAIRO_OPERATOR_CLEAR);
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cairo_paint(window->cairo);
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cairo_restore(window->cairo);
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// Background
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cairo_set_source_u32(window->cairo, colors.background);
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cairo_paint(window->cairo);
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// Command output
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cairo_set_source_u32(window->cairo, colors.statusline);
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int width, height;
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get_text_size(window, &width, &height, "%s", line);
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cairo_move_to(window->cairo, window->width - MARGIN - width, MARGIN);
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pango_printf(window, "%s", line);
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// Workspaces
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cairo_set_line_width(window->cairo, 2.0);
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int x = 1;
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int i;
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for (i = 0; i < workspaces->length; ++i) {
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struct workspace *ws = workspaces->items[i];
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get_text_size(window, &width, &height, "%s", ws->name);
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struct box_colors box_colors;
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if (ws->urgent) {
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box_colors = colors.urgent_workspace;
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} else if (ws->focused) {
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box_colors = colors.focused_workspace;
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} else if (ws->visible) {
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box_colors = colors.active_workspace;
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} else {
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box_colors = colors.inactive_workspace;
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}
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cairo_set_source_u32(window->cairo, box_colors.background);
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cairo_rectangle(window->cairo, x, 0, width + MARGIN * 2, window->height);
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cairo_fill(window->cairo);
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cairo_set_source_u32(window->cairo, box_colors.border);
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cairo_rectangle(window->cairo, x, 2, width + MARGIN * 2, window->height - 4);
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cairo_stroke(window->cairo);
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cairo_set_source_u32(window->cairo, box_colors.text);
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cairo_move_to(window->cairo, x + MARGIN, MARGIN);
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pango_printf(window, "%s", ws->name);
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x += width + MARGIN * 2 + MARGIN;
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}
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}
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void poll_for_update() {
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fd_set readfds;
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int activity;
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while (1) {
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if (dirty && window_prerender(window) && window->cairo) {
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render();
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window_render(window);
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}
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if (wl_display_dispatch(registry->display) == -1) {
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break;
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}
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dirty = false;
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FD_ZERO(&readfds);
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FD_SET(socketfd, &readfds);
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FD_SET(pipefd[0], &readfds);
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activity = select(FD_SETSIZE, &readfds, NULL, NULL, NULL);
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if (activity < 0) {
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sway_log(L_ERROR, "polling failed: %d", errno);
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}
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if (FD_ISSET(socketfd, &readfds)) {
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sway_log(L_DEBUG, "Got workspace update.");
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uint32_t len;
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char *buf = ipc_recv_response(socketfd, &len);
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free(buf);
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ipc_update_workspaces();
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dirty = true;
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}
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if (status_command && FD_ISSET(pipefd[0], &readfds)) {
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sway_log(L_DEBUG, "Got update from status command.");
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fgets(line, sizeof(line), command);
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int l = strlen(line) - 1;
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if (line[l] == '\n') {
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line[l] = '\0';
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}
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dirty = true;
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}
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}
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}
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int main(int argc, char **argv) {
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init_log(L_INFO);
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char *socket_path = NULL;
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char *bar_id = NULL;
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static struct option long_options[] = {
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{"version", no_argument, NULL, 'v'},
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{"socket", required_argument, NULL, 's'},
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{"bar_id", required_argument, NULL, 'b'},
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{0, 0, 0, 0}
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};
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int c;
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while (1) {
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int option_index = 0;
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c = getopt_long(argc, argv, "vs:b:", long_options, &option_index);
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if (c == -1) {
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break;
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}
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switch (c) {
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case 's': // Socket
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socket_path = strdup(optarg);
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break;
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case 'b': // Type
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bar_id = strdup(optarg);
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break;
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case 'v':
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#if defined SWAY_GIT_VERSION && defined SWAY_GIT_BRANCH && defined SWAY_VERSION_DATE
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fprintf(stdout, "sway version %s (%s, branch \"%s\")\n", SWAY_GIT_VERSION, SWAY_VERSION_DATE, SWAY_GIT_BRANCH);
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#else
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fprintf(stdout, "version not detected\n");
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#endif
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exit(EXIT_SUCCESS);
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break;
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default:
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exit(EXIT_FAILURE);
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}
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}
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if (!bar_id) {
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sway_abort("No bar_id passed. Provide --bar_id or let sway start swaybar");
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}
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registry = registry_poll();
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if (!registry->desktop_shell) {
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sway_abort("swaybar requires the compositor to support the desktop-shell extension.");
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}
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if (!socket_path) {
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socket_path = get_socketpath();
|
|
if (!socket_path) {
|
|
sway_abort("Unable to retrieve socket path");
|
|
}
|
|
}
|
|
socketfd = ipc_open_socket(socket_path);
|
|
|
|
if (argc == optind) {
|
|
sway_abort("No output index provided");
|
|
}
|
|
|
|
int desired_output = atoi(argv[optind]);
|
|
struct output_state *output = registry->outputs->items[desired_output];
|
|
|
|
bar_ipc_init(desired_output, bar_id);
|
|
|
|
if (status_command) {
|
|
pipe(pipefd);
|
|
pid = fork();
|
|
if (pid == 0) {
|
|
close(pipefd[0]);
|
|
dup2(pipefd[1], STDOUT_FILENO);
|
|
close(pipefd[1]);
|
|
char *const cmd[] = {
|
|
"sh",
|
|
"-c",
|
|
status_command,
|
|
NULL,
|
|
};
|
|
execvp(cmd[0], cmd);
|
|
return 0;
|
|
}
|
|
|
|
close(pipefd[1]);
|
|
command = fdopen(pipefd[0], "r");
|
|
line[0] = '\0';
|
|
}
|
|
|
|
window = window_setup(registry, output->width, 30, false);
|
|
if (!window) {
|
|
sway_abort("Failed to create window.");
|
|
}
|
|
desktop_shell_set_panel(registry->desktop_shell, output->output, window->surface);
|
|
|
|
int width, height;
|
|
get_text_size(window, &width, &height, "Test string for measuring purposes");
|
|
window->height = height + MARGIN * 2;
|
|
|
|
poll_for_update();
|
|
|
|
window_teardown(window);
|
|
registry_teardown(registry);
|
|
fclose(command);
|
|
// terminate status_command process
|
|
kill(pid, SIGTERM);
|
|
close(pipefd[0]);
|
|
|
|
return 0;
|
|
}
|