/*
 * ewmh.c - EWMH support functions
 *
 * Copyright © 2007 Julien Danjou <julien@danjou.info>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 */

#include <X11/Xatom.h> 

#include "ewmh.h"
#include "config.h"

extern AwesomeConf globalconf;

static Atom net_supported;
static Atom net_client_list;

static Atom net_wm_name;
static Atom net_wm_icon;

typedef struct
{
    const char *name;
    Atom *atom;
} AtomItem;

static AtomItem AtomNames[] =
{
    { "_NET_SUPPORTED", &net_supported },
    { "_NET_CLIENT_LIST", &net_client_list },

    { "_NET_WM_NAME", &net_wm_name },
    { "_NET_WM_ICON", &net_wm_icon },
};

#define ATOM_NUMBER (sizeof(AtomNames)/sizeof(AtomItem)) 

void
ewmh_init_atoms(void)
{
    unsigned int i;
    char *names[ATOM_NUMBER];
    Atom atoms[ATOM_NUMBER];
    
    for(i = 0; i < ATOM_NUMBER; i++)
        names[i] = (char *) AtomNames[i].name;
    XInternAtoms(globalconf.display, names, ATOM_NUMBER, False, atoms);
    for(i = 0; i < ATOM_NUMBER; i++)
        *AtomNames[i].atom = atoms[i];
}

void
ewmh_set_supported_hints(int phys_screen)
{
    Atom atom[ATOM_NUMBER];
    int i = 0;

    atom[i++] = net_supported;
    atom[i++] = net_client_list;
    
    atom[i++] = net_wm_name;
    atom[i++] = net_wm_icon;

    XChangeProperty(globalconf.display, RootWindow(globalconf.display, phys_screen),
                    net_supported, XA_ATOM, 32,
                    PropModeReplace, (unsigned char *) atom, i);
}


// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80