git.sur5r.net Git - i3/i3/blob - src/ewmh.c

   1 /*
   2  * vim:ts=8:expandtab
   3  *
   4  * i3 - an improved dynamic tiling window manager
   5  *
   6  * © 2009 Michael Stapelberg and contributors
   7  *
   8  * See file LICENSE for license information.
   9  *
  10  * ewmh.c: Functions to get/set certain EWMH properties easily.
  11  *
  12  */
  13 #include <stdint.h>
  14
  15 #include "data.h"
  16 #include "table.h"
  17 #include "i3.h"
  18 #include "xcb.h"
  19
  20 /*
  21  * Updates _NET_CURRENT_DESKTOP with the current desktop number.
  22  *
  23  * EWMH: The index of the current desktop. This is always an integer between 0
  24  * and _NET_NUMBER_OF_DESKTOPS - 1.
  25  *
  26  */
  27 void ewmh_update_current_desktop() {
  28         uint32_t current_desktop = c_ws->num;
  29         xcb_change_property(global_conn, XCB_PROP_MODE_REPLACE, root,
  30                             atoms[_NET_CURRENT_DESKTOP], CARDINAL, 32, 1,
  31                             &current_desktop);
  32 }
  33
  34 /*
  35  * Updates _NET_ACTIVE_WINDOW with the currently focused window.
  36  *
  37  * EWMH: The window ID of the currently active window or None if no window has
  38  * the focus.
  39  *
  40  */
  41 void ewmh_update_active_window(xcb_window_t window) {
  42         xcb_change_property(global_conn, XCB_PROP_MODE_REPLACE, root,
  43                             atoms[_NET_ACTIVE_WINDOW], WINDOW, 32, 1, &window);
  44 }