120 lines
3.7 KiB
C
120 lines
3.7 KiB
C
// x-run: make run
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#include "windowtree.h"
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <xcb/xcb.h>
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#include <xcb/xproto.h>
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struct window_info *get_windows_list(xcb_connection_t *conn, size_t *n_windows) {
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xcb_generic_error_t *err;
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xcb_screen_t *screen = xcb_setup_roots_iterator(xcb_get_setup(conn)).data;
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xcb_intern_atom_cookie_t ia_cookie = xcb_intern_atom(conn, 1, 16, "_NET_CLIENT_LIST");
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xcb_intern_atom_reply_t *ia_reply = xcb_intern_atom_reply(conn, ia_cookie, &err);
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if (!ia_reply) {
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fprintf(stderr, "xcb: error: xcb_intern_atom_reply: %d\n", err->error_code);
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return NULL;
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}
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xcb_get_property_cookie_t gp_client_list_cookie = xcb_get_property(conn, 0, screen->root, ia_reply->atom, XCB_ATOM_WINDOW, 0, (uint32_t)~0UL);
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xcb_get_property_reply_t *gp_client_list_reply = xcb_get_property_reply(conn, gp_client_list_cookie, &err);
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if (!gp_client_list_reply) {
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fprintf(stderr, "xcb: error: xcb_get_property_reply: %d\n", err->error_code);
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return NULL;
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}
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*n_windows = xcb_get_property_value_length(gp_client_list_reply) / sizeof(xcb_window_t);
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struct window_info *windows = calloc(*n_windows, sizeof(struct window_info));
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xcb_window_t *child = xcb_get_property_value(gp_client_list_reply);
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for (size_t i = 0; i < *n_windows; i++) {
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windows[i].wid = child[i];
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}
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free(ia_reply);
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free(gp_client_list_reply);
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// Get atom: UTF8_STRING {{{
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ia_cookie = xcb_intern_atom(conn, 1, 11, "UTF8_STRING");
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ia_reply = xcb_intern_atom_reply(conn, ia_cookie, &err);
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if (!ia_reply) {
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fprintf(stderr, "xcb: error: xcb_intern_atom(UTF8_STRING): %d\n", err->error_code);
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return NULL;
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}
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xcb_atom_t atom_utf8_string = ia_reply->atom;
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free(ia_reply);
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// }}}
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// Get atom: _NET_WM_NAME {{{
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ia_cookie = xcb_intern_atom(conn, 1, 12, "_NET_WM_NAME");
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ia_reply = xcb_intern_atom_reply(conn, ia_cookie, &err);
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if (!ia_reply) {
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fprintf(stderr, "xcb: error: xcb_intern_atom(_NET_WM_NAME): %d\n", err->error_code);
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return NULL;
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}
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xcb_atom_t atom_net_wm_name = ia_reply->atom;
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free(ia_reply);
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// }}}
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for (size_t i = 0; i < *n_windows; i++) {
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// Getting geometry {{{
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xcb_get_geometry_cookie_t gg_cookie = xcb_get_geometry(conn, windows[i].wid);
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xcb_get_geometry_reply_t *gg_reply = xcb_get_geometry_reply(conn, gg_cookie, &err);
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if (!gg_reply) {
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fprintf(stderr, "xcb: error: xcb_get_geometry: %d\n", err->error_code);
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return NULL;
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}
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windows[i].rect.x = gg_reply->x;
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windows[i].rect.y = gg_reply->y;
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windows[i].rect.width = gg_reply->width;
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windows[i].rect.height = gg_reply->height;
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free(gg_reply);
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// }}}
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// Translating geometry {{{
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xcb_translate_coordinates_cookie_t tc_cookie = xcb_translate_coordinates(conn, windows[i].wid, screen->root, windows[i].rect.x, windows[i].rect.y);
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xcb_translate_coordinates_reply_t *tc_reply = xcb_translate_coordinates_reply(conn, tc_cookie, &err);
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if (!tc_reply) {
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fprintf(stderr, "xcb: error: xcb_translate_coordinates: %d\n", err->error_code);
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return NULL;
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}
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windows[i].rect.x = tc_reply->dst_x;
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windows[i].rect.y = tc_reply->dst_y;
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free(tc_reply);
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// }}}
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// Getting name: {{{
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xcb_get_property_cookie_t gp_cookie = xcb_get_property(conn, 0, windows[i].wid, atom_net_wm_name, atom_utf8_string, 0, 1024);
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xcb_get_property_reply_t *gp_reply = xcb_get_property_reply(conn, gp_cookie, &err);
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if (!gp_reply) {
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fprintf(stderr, "xcb: error: xcb_get_property: %d\n", err->error_code);
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return NULL;
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}
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char *gp_value = (char *)xcb_get_property_value(gp_reply);
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memset(windows[i].title, 0, 1024);
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strncpy(windows[i].title, gp_value, 1023);
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free(gp_reply);
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// }}}
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}
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// }}}
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return windows; // ewww
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}
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