sway/swaybar/main.c

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14 KiB
C
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
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#include <stdint.h>
#include <stdbool.h>
#include <stropts.h>
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#include <json-c/json.h>
#include <sys/un.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
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#include <getopt.h>
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#include "ipc-client.h"
#include "readline.h"
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#include "client/registry.h"
#include "client/window.h"
#include "client/pango.h"
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#include "stringop.h"
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#include "log.h"
#define MARGIN 5
struct box_colors {
uint32_t border;
uint32_t background;
uint32_t text;
};
struct colors {
uint32_t background;
uint32_t statusline;
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uint32_t separator;
struct box_colors focused_workspace;
struct box_colors active_workspace;
struct box_colors inactive_workspace;
struct box_colors urgent_workspace;
struct box_colors binding_mode;
};
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struct workspace {
int num;
char *name;
bool focused;
bool visible;
bool urgent;
};
list_t *workspaces = NULL;
int socketfd;
FILE *command;
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char *line, *output, *status_command;
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struct registry *registry;
struct window *window;
bool dirty = true;
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struct colors colors = {
.background = 0x000000FF,
.statusline = 0xFFFFFFFF,
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.separator = 0x666666FF,
.focused_workspace = {
.border = 0x4C7899FF,
.background = 0x285577FF,
.text = 0xFFFFFFFF
},
.active_workspace = {
.border = 0x333333FF,
.background = 0x5F676AFF,
.text = 0xFFFFFFFF
},
.inactive_workspace = {
.border = 0x333333FF,
.background = 0x222222FF,
.text = 0x888888FF
},
.urgent_workspace = {
.border = 0x2F343AFF,
.background = 0x900000FF,
.text = 0xFFFFFFFF
},
.binding_mode = {
.border = 0x2F343AFF,
.background = 0x900000FF,
.text = 0xFFFFFFFF
},
};
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void sway_terminate(void) {
window_teardown(window);
registry_teardown(registry);
exit(EXIT_FAILURE);
}
void cairo_set_source_u32(cairo_t *cairo, uint32_t color) {
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cairo_set_source_rgba(cairo,
((color & 0xFF000000) >> 24) / 256.0,
((color & 0xFF0000) >> 16) / 256.0,
((color & 0xFF00) >> 8) / 256.0,
(color & 0xFF) / 256.0);
}
void ipc_update_workspaces() {
if (workspaces) {
free_flat_list(workspaces);
}
workspaces = create_list();
uint32_t len = 0;
char *res = ipc_single_command(socketfd, IPC_GET_WORKSPACES, NULL, &len);
json_object *results = json_tokener_parse(res);
int i;
for (i = 0; i < json_object_array_length(results); ++i) {
json_object *ws_json = json_object_array_get_idx(results, i);
json_object *num, *name, *visible, *focused, *out, *urgent;
json_object_object_get_ex(ws_json, "num", &num);
json_object_object_get_ex(ws_json, "name", &name);
json_object_object_get_ex(ws_json, "visible", &visible);
json_object_object_get_ex(ws_json, "focused", &focused);
json_object_object_get_ex(ws_json, "output", &out);
json_object_object_get_ex(ws_json, "urgent", &urgent);
if (strcmp(json_object_get_string(out), output) == 0) {
struct workspace *ws = malloc(sizeof(struct workspace));
ws->num = json_object_get_int(num);
ws->name = strdup(json_object_get_string(name));
ws->visible = json_object_get_boolean(visible);
ws->focused = json_object_get_boolean(focused);
ws->urgent = json_object_get_boolean(urgent);
list_add(workspaces, ws);
}
json_object_put(num);
json_object_put(name);
json_object_put(visible);
json_object_put(focused);
json_object_put(out);
json_object_put(urgent);
json_object_put(ws_json);
}
json_object_put(results);
free(res);
}
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uint32_t parse_color(const char *color) {
if (color[0] != '#') {
sway_abort("Invalid color %s", color);
}
char *end;
uint32_t res = (uint32_t)strtol(color + 1, &end, 16);
if (strlen(color) == 7) {
res = (res << 8) | 0xFF;
}
return res;
}
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void bar_ipc_init(int outputi, const char *bar_id) {
uint32_t len = 0;
char *res = ipc_single_command(socketfd, IPC_GET_OUTPUTS, NULL, &len);
json_object *outputs = json_tokener_parse(res);
json_object *info = json_object_array_get_idx(outputs, outputi);
json_object *name;
json_object_object_get_ex(info, "name", &name);
output = strdup(json_object_get_string(name));
free(res);
json_object_put(outputs);
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len = strlen(bar_id);
res = ipc_single_command(socketfd, IPC_GET_BAR_CONFIG, bar_id, &len);
json_object *bar_config = json_tokener_parse(res);
json_object *tray_output, *mode, *hidden_state, *position, *_status_command;
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);
json_object_object_get_ex(bar_config, "mode", &mode);
json_object_object_get_ex(bar_config, "hidden_state", &hidden_state);
json_object_object_get_ex(bar_config, "position", &position);
json_object_object_get_ex(bar_config, "status_command", &_status_command);
json_object_object_get_ex(bar_config, "font", &font);
json_object_object_get_ex(bar_config, "bar_height", &bar_height);
json_object_object_get_ex(bar_config, "workspace_buttons", &workspace_buttons);
json_object_object_get_ex(bar_config, "strip_workspace_numbers", &strip_workspace_numbers);
json_object_object_get_ex(bar_config, "binding_mode_indicator", &binding_mode_indicator);
json_object_object_get_ex(bar_config, "verbose", &verbose);
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json_object_object_get_ex(bar_config, "colors", &_colors);
// TODO: More of these options
// TODO: Refactor swaybar into several files, create a bar config struct (shared with compositor?)
if (_status_command) {
status_command = strdup(json_object_get_string(_status_command));
}
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if (_colors) {
json_object *background, *statusline, *separator;
json_object *focused_workspace_border, *focused_workspace_bg, *focused_workspace_text;
json_object *inactive_workspace_border, *inactive_workspace_bg, *inactive_workspace_text;
json_object *active_workspace_border, *active_workspace_bg, *active_workspace_text;
json_object *urgent_workspace_border, *urgent_workspace_bg, *urgent_workspace_text;
json_object *binding_mode_border, *binding_mode_bg, *binding_mode_text;
json_object_object_get_ex(_colors, "background", &background);
json_object_object_get_ex(_colors, "statusline", &statusline);
json_object_object_get_ex(_colors, "separator", &separator);
json_object_object_get_ex(_colors, "focused_workspace_border", &focused_workspace_border);
json_object_object_get_ex(_colors, "focused_workspace_bg", &focused_workspace_bg);
json_object_object_get_ex(_colors, "focused_workspace_text", &focused_workspace_text);
json_object_object_get_ex(_colors, "active_workspace_border", &active_workspace_border);
json_object_object_get_ex(_colors, "active_workspace_bg", &active_workspace_bg);
json_object_object_get_ex(_colors, "active_workspace_text", &active_workspace_text);
json_object_object_get_ex(_colors, "inactive_workspace_border", &inactive_workspace_border);
json_object_object_get_ex(_colors, "inactive_workspace_bg", &inactive_workspace_bg);
json_object_object_get_ex(_colors, "inactive_workspace_text", &inactive_workspace_text);
json_object_object_get_ex(_colors, "urgent_workspace_border", &urgent_workspace_border);
json_object_object_get_ex(_colors, "urgent_workspace_bg", &urgent_workspace_bg);
json_object_object_get_ex(_colors, "urgent_workspace_text", &urgent_workspace_text);
json_object_object_get_ex(_colors, "binding_mode_border", &binding_mode_border);
json_object_object_get_ex(_colors, "binding_mode_bg", &binding_mode_bg);
json_object_object_get_ex(_colors, "binding_mode_text", &binding_mode_text);
if (background) colors.background = parse_color(json_object_get_string(background));
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));
if (focused_workspace_border) {
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colors.focused_workspace.border = parse_color(json_object_get_string(focused_workspace_border));
}
if (focused_workspace_bg) {
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colors.focused_workspace.background = parse_color(json_object_get_string(focused_workspace_bg));
}
if (focused_workspace_text) {
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colors.focused_workspace.text = parse_color(json_object_get_string(focused_workspace_text));
}
if (active_workspace_border) {
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colors.active_workspace.border = parse_color(json_object_get_string(active_workspace_border));
}
if (active_workspace_bg) {
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colors.active_workspace.background = parse_color(json_object_get_string(active_workspace_bg));
}
if (active_workspace_text) {
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colors.active_workspace.text = parse_color(json_object_get_string(active_workspace_text));
}
if (inactive_workspace_border) {
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colors.inactive_workspace.border = parse_color(json_object_get_string(inactive_workspace_border));
}
if (inactive_workspace_bg) {
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colors.inactive_workspace.background = parse_color(json_object_get_string(inactive_workspace_bg));
}
if (inactive_workspace_text) {
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colors.inactive_workspace.text = parse_color(json_object_get_string(inactive_workspace_text));
}
if (binding_mode_border) {
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colors.binding_mode.border = parse_color(json_object_get_string(binding_mode_border));
}
if (binding_mode_bg) {
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colors.binding_mode.background = parse_color(json_object_get_string(binding_mode_bg));
}
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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json_object_put(bar_config);
free(res);
const char *subscribe_json = "[ \"workspace\" ]";
len = strlen(subscribe_json);
res = ipc_single_command(socketfd, IPC_SUBSCRIBE, subscribe_json, &len);
ipc_update_workspaces();
}
void update() {
int pending;
// If no command is set, we don't have to update anything
if (status_command) {
if (ioctl(fileno(command), FIONREAD, &pending) != -1 && pending > 0) {
free(line);
line = read_line(command);
int l = strlen(line) - 1;
if (line[l] == '\n') {
line[l] = '\0';
}
dirty = true;
}
}
if (ioctl(socketfd, FIONREAD, &pending) != -1 && pending > 0) {
uint32_t len;
char *buf = ipc_recv_response(socketfd, &len);
free(buf);
ipc_update_workspaces();
dirty = true;
}
}
void render() {
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// Clear
cairo_save(window->cairo);
cairo_set_operator(window->cairo, CAIRO_OPERATOR_CLEAR);
cairo_paint(window->cairo);
cairo_restore(window->cairo);
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// Background
cairo_set_source_u32(window->cairo, colors.background);
cairo_paint(window->cairo);
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// Command output
cairo_set_source_u32(window->cairo, colors.statusline);
int width, height;
get_text_size(window, &width, &height, "%s", line);
cairo_move_to(window->cairo, window->width - MARGIN - width, MARGIN);
pango_printf(window, "%s", line);
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// Workspaces
cairo_set_line_width(window->cairo, 2.0);
int x = 1;
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int i;
for (i = 0; i < workspaces->length; ++i) {
struct workspace *ws = workspaces->items[i];
get_text_size(window, &width, &height, "%s", ws->name);
struct box_colors box_colors;
if (ws->urgent) {
box_colors = colors.urgent_workspace;
} else if (ws->focused) {
box_colors = colors.focused_workspace;
} else if (ws->visible) {
box_colors = colors.active_workspace;
} else {
box_colors = colors.inactive_workspace;
}
cairo_set_source_u32(window->cairo, box_colors.background);
cairo_rectangle(window->cairo, x, 0, width + MARGIN * 2, window->height);
cairo_fill(window->cairo);
cairo_set_source_u32(window->cairo, box_colors.border);
cairo_rectangle(window->cairo, x, 2, width + MARGIN * 2, window->height - 4);
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cairo_stroke(window->cairo);
cairo_set_source_u32(window->cairo, box_colors.text);
cairo_move_to(window->cairo, x + MARGIN, MARGIN);
pango_printf(window, "%s", ws->name);
x += width + MARGIN * 2 + MARGIN;
}
}
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int main(int argc, char **argv) {
init_log(L_INFO);
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char *socket_path = NULL;
char *bar_id = NULL;
static struct option long_options[] = {
{"version", no_argument, NULL, 'v'},
{"socket", required_argument, NULL, 's'},
{"bar_id", required_argument, NULL, 'b'},
{0, 0, 0, 0}
};
int c;
while (1) {
int option_index = 0;
c = getopt_long(argc, argv, "vs:b:", long_options, &option_index);
if (c == -1) {
break;
}
switch (c) {
case 's': // Socket
socket_path = strdup(optarg);
break;
case 'b': // Type
bar_id = strdup(optarg);
break;
case 'v':
#if defined SWAY_GIT_VERSION && defined SWAY_GIT_BRANCH && defined SWAY_VERSION_DATE
fprintf(stdout, "sway version %s (%s, branch \"%s\")\n", SWAY_GIT_VERSION, SWAY_VERSION_DATE, SWAY_GIT_BRANCH);
#else
fprintf(stdout, "version not detected\n");
#endif
exit(EXIT_SUCCESS);
break;
default:
exit(EXIT_FAILURE);
}
}
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if (!bar_id) {
sway_abort("No bar_id passed. Provide --bar_id or let sway start swaybar");
}
registry = registry_poll();
if (!registry->desktop_shell) {
sway_abort("swaybar requires the compositor to support the desktop-shell extension.");
}
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if (!socket_path) {
socket_path = get_socketpath();
if (!socket_path) {
sway_abort("Unable to retrieve socket path");
}
}
socketfd = ipc_open_socket(socket_path);
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if (argc == optind) {
sway_abort("No output index provided");
}
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int desired_output = atoi(argv[optind]);
struct output_state *output = registry->outputs->items[desired_output];
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bar_ipc_init(desired_output, bar_id);
if (status_command) {
command = popen(status_command, "r");
line = malloc(1024);
line[0] = '\0';
}
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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);
desktop_shell_set_panel_position(registry->desktop_shell, DESKTOP_SHELL_PANEL_POSITION_BOTTOM);
int width, height;
get_text_size(window, &width, &height, "Test string for measuring purposes");
window->height = height + MARGIN * 2;
do {
update();
if (dirty && window_prerender(window) && window->cairo) {
render();
window_render(window);
}
} while (wl_display_dispatch(registry->display) != -1);
window_teardown(window);
registry_teardown(registry);
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return 0;
}