sway/swaybar/main.c

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7.2 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 "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;
uint32_t seperator;
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;
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struct registry *registry;
struct window *window;
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struct colors colors = {
.background = 0x000000FF,
.statusline = 0xFFFFFFFF,
.seperator = 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) {
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);
sway_log(L_INFO, "Handling workspace %s", ws->name);
}
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);
}
void bar_ipc_init(int outputi) {
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);
sway_log(L_INFO, "Running on output %s", output);
const char *subscribe_json = "[ \"workspace\" ]";
len = strlen(subscribe_json);
res = ipc_single_command(socketfd, IPC_SUBSCRIBE, subscribe_json, &len);
sway_log(L_INFO, "%s", res);
ipc_update_workspaces();
}
void update() {
int pending;
if (ioctl(fileno(command), FIONREAD, &pending) != -1 && pending > 0) {
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free(line);
line = read_line(command);
int l = strlen(line) - 1;
if (line[l] == '\n') {
line[l] = '\0';
}
}
if (ioctl(socketfd, FIONREAD, &pending) != -1 && pending > 0) {
sway_log(L_INFO, "data available");
uint32_t len;
char *buf = ipc_recv_response(socketfd, &len);
sway_log(L_INFO, "%s", buf);
free(buf);
ipc_update_workspaces();
}
}
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
int x = 0;
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, 0, width + MARGIN * 2, window->height);
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);
registry = registry_poll();
if (!registry->desktop_shell) {
sway_abort("swaybar requires the compositor to support the desktop-shell extension.");
}
int desired_output = atoi(argv[1]);
sway_log(L_INFO, "Using output %d of %d", desired_output, registry->outputs->length);
struct output_state *output = registry->outputs->items[desired_output];
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;
command = popen(argv[2], "r");
line = malloc(1024);
line[0] = '\0';
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char *socket_path = get_socketpath();
if (!socket_path) {
sway_abort("Unable to retrieve socket path");
}
socketfd = ipc_open_socket(socket_path);
bar_ipc_init(desired_output);
do {
if (window_prerender(window) && window->cairo) {
update();
render();
window_render(window);
}
} while (wl_display_dispatch(registry->display) != -1);
window_teardown(window);
registry_teardown(registry);
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return 0;
}