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- If IPC response contains `success: false`, abort and print error message. - If tree has no nodes, abort with error msg instead of segfaulting.
145 lines
4 KiB
C
145 lines
4 KiB
C
#define _XOPEN_SOURCE 700
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#include <string.h>
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#include <stdio.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "log.h"
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#include "ipc-client.h"
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#include "swaygrab/json.h"
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static json_object *tree;
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void init_json_tree(int socketfd) {
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uint32_t len = 0;
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char *res = ipc_single_command(socketfd, IPC_GET_TREE, NULL, &len);
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struct json_tokener *tok = json_tokener_new_ex(256);
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if (!tok) {
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sway_abort("Unable to get json tokener.");
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}
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tree = json_tokener_parse_ex(tok, res, len);
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if (!tree || tok->err != json_tokener_success) {
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sway_abort("Unable to parse IPC response as JSON: %s", json_tokener_error_desc(tok->err));
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}
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json_object *success;
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json_object_object_get_ex(tree, "success", &success);
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if (success && !json_object_get_boolean(success)) {
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json_object *error;
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json_object_object_get_ex(tree, "error", &error);
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sway_abort("IPC request failed: %s", json_object_get_string(error));
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}
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json_object_put(success);
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json_tokener_free(tok);
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}
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void free_json_tree() {
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json_object_put(tree);
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}
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static bool is_focused(json_object *c) {
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json_object *focused;
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json_object_object_get_ex(c, "focused", &focused);
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return json_object_get_boolean(focused);
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}
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static json_object *get_focused_container_r(json_object *c) {
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json_object *name;
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json_object_object_get_ex(c, "name", &name);
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if (is_focused(c)) {
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return c;
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} else {
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json_object *nodes, *node, *child;
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json_object_object_get_ex(c, "nodes", &nodes);
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int i;
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for (i = 0; i < json_object_array_length(nodes); i++) {
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node = json_object_array_get_idx(nodes, i);
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if ((child = get_focused_container_r(node))) {
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return child;
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}
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}
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json_object_object_get_ex(c, "floating_nodes", &nodes);
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for (i = 0; i < json_object_array_length(nodes); i++) {
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node = json_object_array_get_idx(nodes, i);
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if ((child = get_focused_container_r(node))) {
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return child;
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}
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}
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}
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return NULL;
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}
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json_object *get_focused_container() {
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return get_focused_container_r(tree);
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}
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char *get_focused_output() {
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json_object *outputs, *output, *name;
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json_object_object_get_ex(tree, "nodes", &outputs);
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if (!outputs) {
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sway_abort("Unabled to get focused output. No nodes in tree.");
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}
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for (int i = 0; i < json_object_array_length(outputs); i++) {
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output = json_object_array_get_idx(outputs, i);
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if (get_focused_container_r(output)) {
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json_object_object_get_ex(output, "name", &name);
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return strdup(json_object_get_string(name));
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}
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}
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return NULL;
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}
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char *create_payload(const char *output, struct wlc_geometry *g) {
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char *payload_str = malloc(256);
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json_object *payload = json_object_new_object();
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json_object_object_add(payload, "output", json_object_new_string(output));
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json_object_object_add(payload, "x", json_object_new_int(g->origin.x));
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json_object_object_add(payload, "y", json_object_new_int(g->origin.y));
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json_object_object_add(payload, "w", json_object_new_int(g->size.w));
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json_object_object_add(payload, "h", json_object_new_int(g->size.h));
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snprintf(payload_str, 256, "%s", json_object_to_json_string(payload));
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return strdup(payload_str);
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}
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struct wlc_geometry *get_container_geometry(json_object *container) {
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struct wlc_geometry *geo = malloc(sizeof(struct wlc_geometry));
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json_object *rect, *x, *y, *w, *h;
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json_object_object_get_ex(container, "rect", &rect);
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json_object_object_get_ex(rect, "x", &x);
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json_object_object_get_ex(rect, "y", &y);
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json_object_object_get_ex(rect, "width", &w);
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json_object_object_get_ex(rect, "height", &h);
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geo->origin.x = json_object_get_int(x);
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geo->origin.y = json_object_get_int(y);
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geo->size.w = json_object_get_int(w);
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geo->size.h = json_object_get_int(h);
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return geo;
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}
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json_object *get_output_container(const char *output) {
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json_object *outputs, *json_output, *name;
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json_object_object_get_ex(tree, "nodes", &outputs);
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for (int i = 0; i < json_object_array_length(outputs); i++) {
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json_output = json_object_array_get_idx(outputs, i);
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json_object_object_get_ex(json_output, "name", &name);
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if (strcmp(json_object_get_string(name), output) == 0) {
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return json_output;
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}
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}
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return NULL;
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}
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