swayfx/swaybar/ipc.c
2019-01-16 13:02:26 +01:00

588 lines
20 KiB
C

#define _POSIX_C_SOURCE 200809
#include <limits.h>
#include <string.h>
#include <strings.h>
#include <json-c/json.h>
#include <wlr/util/log.h>
#include "swaybar/config.h"
#include "swaybar/ipc.h"
#include "config.h"
#include "ipc-client.h"
#include "list.h"
void ipc_send_workspace_command(struct swaybar *bar, const char *ws) {
const char *fmt = "workspace \"%s\"";
uint32_t size = snprintf(NULL, 0, fmt, ws);
char *command = malloc(sizeof(char) * (size + 1));
snprintf(command, size, fmt, ws);
ipc_single_command(bar->ipc_socketfd, IPC_COMMAND, command, &size);
free(command);
}
char *parse_font(const char *font) {
char *new_font = NULL;
if (strncmp("pango:", font, 6) == 0) {
font += 6;
}
new_font = strdup(font);
return new_font;
}
static void ipc_parse_colors(
struct swaybar_config *config, json_object *colors) {
json_object *background, *statusline, *separator;
json_object *focused_background, *focused_statusline, *focused_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_background", &focused_background);
json_object_object_get_ex(colors, "focused_statusline", &focused_statusline);
json_object_object_get_ex(colors, "focused_separator", &focused_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) {
config->colors.background = parse_color(
json_object_get_string(background));
}
if (statusline) {
config->colors.statusline = parse_color(
json_object_get_string(statusline));
}
if (separator) {
config->colors.separator = parse_color(
json_object_get_string(separator));
}
if (focused_background) {
config->colors.focused_background = parse_color(
json_object_get_string(focused_background));
}
if (focused_statusline) {
config->colors.focused_statusline = parse_color(
json_object_get_string(focused_statusline));
}
if (focused_separator) {
config->colors.focused_separator = parse_color(
json_object_get_string(focused_separator));
}
if (focused_workspace_border) {
config->colors.focused_workspace.border = parse_color(
json_object_get_string(focused_workspace_border));
}
if (focused_workspace_bg) {
config->colors.focused_workspace.background = parse_color(
json_object_get_string(focused_workspace_bg));
}
if (focused_workspace_text) {
config->colors.focused_workspace.text = parse_color(
json_object_get_string(focused_workspace_text));
}
if (active_workspace_border) {
config->colors.active_workspace.border = parse_color(
json_object_get_string(active_workspace_border));
}
if (active_workspace_bg) {
config->colors.active_workspace.background = parse_color(
json_object_get_string(active_workspace_bg));
}
if (active_workspace_text) {
config->colors.active_workspace.text = parse_color(
json_object_get_string(active_workspace_text));
}
if (inactive_workspace_border) {
config->colors.inactive_workspace.border = parse_color(
json_object_get_string(inactive_workspace_border));
}
if (inactive_workspace_bg) {
config->colors.inactive_workspace.background = parse_color(
json_object_get_string(inactive_workspace_bg));
}
if (inactive_workspace_text) {
config->colors.inactive_workspace.text = parse_color(
json_object_get_string(inactive_workspace_text));
}
if (urgent_workspace_border) {
config->colors.urgent_workspace.border = parse_color(
json_object_get_string(urgent_workspace_border));
}
if (urgent_workspace_bg) {
config->colors.urgent_workspace.background = parse_color(
json_object_get_string(urgent_workspace_bg));
}
if (urgent_workspace_text) {
config->colors.urgent_workspace.text = parse_color(
json_object_get_string(urgent_workspace_text));
}
if (binding_mode_border) {
config->colors.binding_mode.border = parse_color(
json_object_get_string(binding_mode_border));
}
if (binding_mode_bg) {
config->colors.binding_mode.background = parse_color(
json_object_get_string(binding_mode_bg));
}
if (binding_mode_text) {
config->colors.binding_mode.text = parse_color(
json_object_get_string(binding_mode_text));
}
}
static bool ipc_parse_config(
struct swaybar_config *config, const char *payload) {
json_object *bar_config = json_tokener_parse(payload);
json_object *success;
if (json_object_object_get_ex(bar_config, "success", &success)
&& !json_object_get_boolean(success)) {
wlr_log(WLR_ERROR, "No bar with that ID. Use 'swaymsg -t get_bar_config to get the available bar configs.");
json_object_put(bar_config);
return false;
}
json_object *markup, *mode, *hidden_state, *position, *status_command;
json_object *font, *gaps, *bar_height, *wrap_scroll, *workspace_buttons;
json_object *strip_workspace_numbers, *strip_workspace_name;
json_object *binding_mode_indicator, *verbose, *colors, *sep_symbol;
json_object *outputs, *bindings, *status_padding, *status_edge_padding;
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, "gaps", &gaps);
json_object_object_get_ex(bar_config, "bar_height", &bar_height);
json_object_object_get_ex(bar_config, "wrap_scroll", &wrap_scroll);
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, "strip_workspace_name", &strip_workspace_name);
json_object_object_get_ex(bar_config, "binding_mode_indicator", &binding_mode_indicator);
json_object_object_get_ex(bar_config, "verbose", &verbose);
json_object_object_get_ex(bar_config, "separator_symbol", &sep_symbol);
json_object_object_get_ex(bar_config, "colors", &colors);
json_object_object_get_ex(bar_config, "outputs", &outputs);
json_object_object_get_ex(bar_config, "pango_markup", &markup);
json_object_object_get_ex(bar_config, "bindings", &bindings);
json_object_object_get_ex(bar_config, "status_padding", &status_padding);
json_object_object_get_ex(bar_config, "status_edge_padding",
&status_edge_padding);
if (status_command) {
free(config->status_command);
config->status_command = strdup(json_object_get_string(status_command));
}
if (position) {
config->position = parse_position(json_object_get_string(position));
}
if (font) {
free(config->font);
config->font = parse_font(json_object_get_string(font));
}
if (sep_symbol) {
free(config->sep_symbol);
config->sep_symbol = strdup(json_object_get_string(sep_symbol));
}
if (strip_workspace_numbers) {
config->strip_workspace_numbers = json_object_get_boolean(strip_workspace_numbers);
}
if (strip_workspace_name) {
config->strip_workspace_name = json_object_get_boolean(strip_workspace_name);
}
if (binding_mode_indicator) {
config->binding_mode_indicator = json_object_get_boolean(binding_mode_indicator);
}
if (wrap_scroll) {
config->wrap_scroll = json_object_get_boolean(wrap_scroll);
}
if (workspace_buttons) {
config->workspace_buttons = json_object_get_boolean(workspace_buttons);
}
if (bar_height) {
config->height = json_object_get_int(bar_height);
}
if (status_padding) {
config->status_padding = json_object_get_int(status_padding);
}
if (status_edge_padding) {
config->status_edge_padding = json_object_get_int(status_edge_padding);
}
if (gaps) {
json_object *top = json_object_object_get(gaps, "top");
if (top) {
config->gaps.top = json_object_get_int(top);
}
json_object *right = json_object_object_get(gaps, "right");
if (right) {
config->gaps.right = json_object_get_int(right);
}
json_object *bottom = json_object_object_get(gaps, "bottom");
if (bottom) {
config->gaps.bottom = json_object_get_int(bottom);
}
json_object *left = json_object_object_get(gaps, "left");
if (left) {
config->gaps.left = json_object_get_int(left);
}
}
if (markup) {
config->pango_markup = json_object_get_boolean(markup);
}
if (bindings) {
int length = json_object_array_length(bindings);
for (int i = 0; i < length; ++i) {
json_object *bindobj = json_object_array_get_idx(bindings, i);
struct swaybar_binding *binding =
calloc(1, sizeof(struct swaybar_binding));
binding->button = json_object_get_int(
json_object_object_get(bindobj, "event_code"));
binding->command = strdup(json_object_get_string(
json_object_object_get(bindobj, "command")));
binding->release = json_object_get_boolean(
json_object_object_get(bindobj, "release"));
list_add(config->bindings, binding);
}
}
if (hidden_state) {
free(config->hidden_state);
config->hidden_state = strdup(json_object_get_string(hidden_state));
}
if (mode) {
free(config->mode);
config->mode = strdup(json_object_get_string(mode));
}
struct config_output *output, *tmp;
wl_list_for_each_safe(output, tmp, &config->outputs, link) {
wl_list_remove(&output->link);
free(output->name);
free(output);
}
if (outputs) {
int length = json_object_array_length(outputs);
for (int i = 0; i < length; ++i) {
json_object *output = json_object_array_get_idx(outputs, i);
const char *name = json_object_get_string(output);
if (strcmp("*", name) == 0) {
config->all_outputs = true;
break;
}
struct config_output *coutput = calloc(
1, sizeof(struct config_output));
coutput->name = strdup(name);
coutput->index = SIZE_MAX;
wl_list_insert(&config->outputs, &coutput->link);
}
} else {
config->all_outputs = true;
}
if (colors) {
ipc_parse_colors(config, colors);
}
#if HAVE_TRAY
json_object *tray_outputs, *tray_padding, *tray_bindings, *icon_theme;
if ((json_object_object_get_ex(bar_config, "tray_outputs", &tray_outputs))) {
config->tray_outputs = create_list();
int length = json_object_array_length(tray_outputs);
for (int i = 0; i < length; ++i) {
json_object *o = json_object_array_get_idx(tray_outputs, i);
list_add(config->tray_outputs, strdup(json_object_get_string(o)));
}
config->tray_hidden = strcmp(config->tray_outputs->items[0], "none") == 0;
}
if ((json_object_object_get_ex(bar_config, "tray_padding", &tray_padding))) {
config->tray_padding = json_object_get_int(tray_padding);
}
if ((json_object_object_get_ex(bar_config, "tray_bindings", &tray_bindings))) {
int length = json_object_array_length(tray_bindings);
for (int i = 0; i < length; ++i) {
json_object *bind = json_object_array_get_idx(tray_bindings, i);
struct tray_binding *binding =
calloc(1, sizeof(struct tray_binding));
binding->button = json_object_get_int(
json_object_object_get(bind, "event_code"));
binding->command = strdup(json_object_get_string(
json_object_object_get(bind, "command")));
wl_list_insert(&config->tray_bindings, &binding->link);
}
}
if ((json_object_object_get_ex(bar_config, "icon_theme", &icon_theme))) {
config->icon_theme = strdup(json_object_get_string(icon_theme));
}
#endif
json_object_put(bar_config);
return true;
}
bool ipc_get_workspaces(struct swaybar *bar) {
struct swaybar_output *output;
wl_list_for_each(output, &bar->outputs, link) {
free_workspaces(&output->workspaces);
output->focused = false;
}
uint32_t len = 0;
char *res = ipc_single_command(bar->ipc_socketfd,
IPC_GET_WORKSPACES, NULL, &len);
json_object *results = json_tokener_parse(res);
if (!results) {
free(res);
return false;
}
bar->visible_by_urgency = false;
size_t length = json_object_array_length(results);
json_object *ws_json;
json_object *num, *name, *visible, *focused, *out, *urgent;
for (size_t i = 0; i < length; ++i) {
ws_json = json_object_array_get_idx(results, i);
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);
wl_list_for_each(output, &bar->outputs, link) {
const char *ws_output = json_object_get_string(out);
if (strcmp(ws_output, output->name) == 0) {
struct swaybar_workspace *ws =
calloc(1, sizeof(struct swaybar_workspace));
ws->num = json_object_get_int(num);
ws->name = strdup(json_object_get_string(name));
ws->label = strdup(ws->name);
// ws->num will be -1 if workspace name doesn't begin with int.
if (ws->num != -1) {
size_t len_offset = numlen(ws->num);
if (bar->config->strip_workspace_name) {
free(ws->label);
ws->label = malloc(len_offset + 1 * sizeof(char));
ws->label[len_offset] = '\0';
strncpy(ws->label, ws->name, len_offset);
} else if (bar->config->strip_workspace_numbers) {
len_offset += ws->label[len_offset] == ':';
if (strlen(ws->name) > len_offset) {
free(ws->label);
// Strip number prefix [1-?:] using len_offset.
ws->label = strdup(ws->name + len_offset);
}
}
}
ws->visible = json_object_get_boolean(visible);
ws->focused = json_object_get_boolean(focused);
if (ws->focused) {
output->focused = true;
}
ws->urgent = json_object_get_boolean(urgent);
if (ws->urgent) {
bar->visible_by_urgency = true;
}
wl_list_insert(output->workspaces.prev, &ws->link);
}
}
}
json_object_put(results);
free(res);
return determine_bar_visibility(bar, false);
}
static void ipc_get_outputs(struct swaybar *bar) {
uint32_t len = 0;
char *res = ipc_single_command(bar->ipc_socketfd,
IPC_GET_OUTPUTS, NULL, &len);
json_object *outputs = json_tokener_parse(res);
for (size_t i = 0; i < json_object_array_length(outputs); ++i) {
json_object *output = json_object_array_get_idx(outputs, i);
json_object *output_name, *output_active;
json_object_object_get_ex(output, "name", &output_name);
json_object_object_get_ex(output, "active", &output_active);
const char *name = json_object_get_string(output_name);
bool active = json_object_get_boolean(output_active);
if (!active) {
continue;
}
if (bar->config->all_outputs) {
struct config_output *coutput =
calloc(1, sizeof(struct config_output));
coutput->name = strdup(name);
coutput->index = i;
wl_list_insert(&bar->config->outputs, &coutput->link);
} else {
struct config_output *coutput;
wl_list_for_each(coutput, &bar->config->outputs, link) {
if (strcmp(name, coutput->name) == 0) {
coutput->index = i;
break;
}
}
}
}
json_object_put(outputs);
free(res);
}
void ipc_execute_binding(struct swaybar *bar, struct swaybar_binding *bind) {
wlr_log(WLR_DEBUG, "Executing binding for button %u (release=%d): `%s`",
bind->button, bind->release, bind->command);
uint32_t len = strlen(bind->command);
free(ipc_single_command(bar->ipc_socketfd,
IPC_COMMAND, bind->command, &len));
}
bool ipc_initialize(struct swaybar *bar) {
uint32_t len = strlen(bar->id);
char *res = ipc_single_command(bar->ipc_socketfd,
IPC_GET_BAR_CONFIG, bar->id, &len);
if (!ipc_parse_config(bar->config, res)) {
free(res);
return false;
}
free(res);
ipc_get_outputs(bar);
struct swaybar_config *config = bar->config;
char subscribe[128]; // suitably large buffer
len = snprintf(subscribe, 128,
"[ \"barconfig_update\" , \"bar_state_update\" %s %s ]",
config->binding_mode_indicator ? ", \"mode\"" : "",
config->workspace_buttons ? ", \"workspace\"" : "");
free(ipc_single_command(bar->ipc_event_socketfd,
IPC_SUBSCRIBE, subscribe, &len));
return true;
}
static bool handle_bar_state_update(struct swaybar *bar, json_object *event) {
json_object *json_id;
json_object_object_get_ex(event, "id", &json_id);
const char *id = json_object_get_string(json_id);
if (strcmp(id, bar->id) != 0) {
return false;
}
json_object *visible_by_modifier;
json_object_object_get_ex(event, "visible_by_modifier", &visible_by_modifier);
bar->visible_by_modifier = json_object_get_boolean(visible_by_modifier);
return determine_bar_visibility(bar, false);
}
static bool handle_barconfig_update(struct swaybar *bar,
json_object *json_config) {
json_object *json_id;
json_object_object_get_ex(json_config, "id", &json_id);
const char *id = json_object_get_string(json_id);
if (strcmp(id, bar->id) != 0) {
return false;
}
struct swaybar_config *config = bar->config;
json_object *json_state;
json_object_object_get_ex(json_config, "hidden_state", &json_state);
const char *new_state = json_object_get_string(json_state);
char *old_state = config->hidden_state;
if (strcmp(new_state, old_state) != 0) {
wlr_log(WLR_DEBUG, "Changing bar hidden state to %s", new_state);
free(old_state);
config->hidden_state = strdup(new_state);
return determine_bar_visibility(bar, false);
}
free(config->mode);
json_object *json_mode;
json_object_object_get_ex(json_config, "mode", &json_mode);
config->mode = strdup(json_object_get_string(json_mode));
wlr_log(WLR_DEBUG, "Changing bar mode to %s", config->mode);
json_object *gaps;
json_object_object_get_ex(json_config, "gaps", &gaps);
if (gaps) {
json_object *top = json_object_object_get(gaps, "top");
if (top) {
config->gaps.top = json_object_get_int(top);
}
json_object *right = json_object_object_get(gaps, "right");
if (right) {
config->gaps.right = json_object_get_int(right);
}
json_object *bottom = json_object_object_get(gaps, "bottom");
if (bottom) {
config->gaps.bottom = json_object_get_int(bottom);
}
json_object *left = json_object_object_get(gaps, "left");
if (left) {
config->gaps.left = json_object_get_int(left);
}
}
return determine_bar_visibility(bar, true);
}
bool handle_ipc_readable(struct swaybar *bar) {
struct ipc_response *resp = ipc_recv_response(bar->ipc_event_socketfd);
if (!resp) {
return false;
}
json_object *result = json_tokener_parse(resp->payload);
if (!result) {
wlr_log(WLR_ERROR, "failed to parse payload as json");
free_ipc_response(resp);
return false;
}
bool bar_is_dirty = true;
switch (resp->type) {
case IPC_EVENT_WORKSPACE:
bar_is_dirty = ipc_get_workspaces(bar);
break;
case IPC_EVENT_MODE: {
json_object *json_change, *json_pango_markup;
if (json_object_object_get_ex(result, "change", &json_change)) {
const char *change = json_object_get_string(json_change);
free(bar->mode);
bar->mode = strcmp(change, "default") != 0 ? strdup(change) : NULL;
} else {
wlr_log(WLR_ERROR, "failed to parse response");
bar_is_dirty = false;
break;
}
if (json_object_object_get_ex(result,
"pango_markup", &json_pango_markup)) {
bar->mode_pango_markup = json_object_get_boolean(json_pango_markup);
}
break;
}
case IPC_EVENT_BARCONFIG_UPDATE:
bar_is_dirty = handle_barconfig_update(bar, result);
break;
case IPC_EVENT_BAR_STATE_UPDATE:
bar_is_dirty = handle_bar_state_update(bar, result);
break;
default:
bar_is_dirty = false;
break;
}
json_object_put(result);
free_ipc_response(resp);
return bar_is_dirty;
}