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awesome/ewmh.c

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/*
* ewmh.c - EWMH support functions
*
* Copyright © 2007-2008 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 <sys/types.h>
#include <unistd.h>
#include <xcb/xcb.h>
#include <xcb/xcb_atom.h>
#include "ewmh.h"
#include "tag.h"
#include "screen.h"
#include "client.h"
#include "widget.h"
#include "cnode.h"
#include "titlebar.h"
#include "statusbar.h"
#include "common/atoms.h"
extern awesome_t globalconf;
#define _NET_WM_STATE_REMOVE 0
#define _NET_WM_STATE_ADD 1
#define _NET_WM_STATE_TOGGLE 2
void
ewmh_init(int phys_screen)
{
xcb_window_t father;
xcb_screen_t *xscreen = xutil_screen_get(globalconf.connection, phys_screen);
xcb_atom_t atom[] =
{
_NET_SUPPORTED,
_NET_SUPPORTING_WM_CHECK,
_NET_CLIENT_LIST,
_NET_CLIENT_LIST_STACKING,
_NET_NUMBER_OF_DESKTOPS,
_NET_CURRENT_DESKTOP,
_NET_DESKTOP_NAMES,
_NET_ACTIVE_WINDOW,
_NET_WORKAREA,
_NET_CLOSE_WINDOW,
_NET_WM_NAME,
_NET_WM_STRUT_PARTIAL,
_NET_WM_ICON_NAME,
_NET_WM_VISIBLE_ICON_NAME,
_NET_WM_DESKTOP,
_NET_WM_WINDOW_TYPE,
_NET_WM_WINDOW_TYPE_NORMAL,
_NET_WM_WINDOW_TYPE_DESKTOP,
_NET_WM_WINDOW_TYPE_DOCK,
_NET_WM_WINDOW_TYPE_SPLASH,
_NET_WM_WINDOW_TYPE_DIALOG,
_NET_WM_ICON,
_NET_WM_PID,
_NET_WM_STATE,
_NET_WM_STATE_STICKY,
_NET_WM_STATE_SKIP_TASKBAR,
_NET_WM_STATE_FULLSCREEN,
_NET_WM_STATE_ABOVE,
_NET_WM_STATE_BELOW,
_NET_WM_STATE_MODAL,
_NET_WM_STATE_HIDDEN,
_NET_WM_STATE_DEMANDS_ATTENTION
};
int i;
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
xscreen->root, _NET_SUPPORTED, ATOM, 32,
countof(atom), atom);
/* create our own window */
father = xcb_generate_id(globalconf.connection);
xcb_create_window(globalconf.connection, xscreen->root_depth,
father, xscreen->root, -1, -1, 1, 1, 0,
XCB_COPY_FROM_PARENT, xscreen->root_visual, 0, NULL);
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
xscreen->root, _NET_SUPPORTING_WM_CHECK, WINDOW, 32,
1, &father);
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
father, _NET_SUPPORTING_WM_CHECK, WINDOW, 32,
1, &father);
/* set the window manager name */
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
father, _NET_WM_NAME, UTF8_STRING, 8, 7, "awesome");
/* set the window manager PID */
i = getpid();
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
father, _NET_WM_PID, CARDINAL, 32, 1, &i);
}
void
ewmh_update_net_client_list(int phys_screen)
{
xcb_window_t *wins;
client_t *c;
int n = 0;
for(c = globalconf.clients; c; c = c->next)
n++;
wins = p_alloca(xcb_window_t, n);
for(n = 0, c = globalconf.clients; c; c = c->next, n++)
if(c->phys_screen == phys_screen)
wins[n] = c->win;
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
xutil_screen_get(globalconf.connection, phys_screen)->root,
_NET_CLIENT_LIST, WINDOW, 32, n, wins);
}
/** Set the client list in stacking order, bottom to top.
* \param phys_screen The physical screen id.
*/
void
ewmh_update_net_client_list_stacking(int phys_screen)
{
xcb_window_t *wins;
client_node_t *c;
int n = 0;
for(c = globalconf.stack; c; c = c->next)
n++;
wins = p_alloca(xcb_window_t, n);
for(n = 0, c = *client_node_list_last(&globalconf.stack); c; c = c->prev, n++)
if(c->client->phys_screen == phys_screen)
wins[n] = c->client->win;
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
xutil_screen_get(globalconf.connection, phys_screen)->root,
_NET_CLIENT_LIST_STACKING, WINDOW, 32, n, wins);
}
void
ewmh_update_net_numbers_of_desktop(int phys_screen)
{
uint32_t count = globalconf.screens[phys_screen].tags.len;
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
xutil_screen_get(globalconf.connection, phys_screen)->root,
_NET_NUMBER_OF_DESKTOPS, CARDINAL, 32, 1, &count);
}
void
ewmh_update_net_current_desktop(int phys_screen)
{
tag_array_t *tags = &globalconf.screens[phys_screen].tags;
uint32_t count = 0;
tag_t **curtags = tags_get_current(phys_screen);
while(count < (uint32_t) tags->len && tags->tab[count] != curtags[0])
count++;
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
xutil_screen_get(globalconf.connection, phys_screen)->root,
_NET_CURRENT_DESKTOP, CARDINAL, 32, 1, &count);
p_delete(&curtags);
}
void
ewmh_update_net_desktop_names(int phys_screen)
{
tag_array_t *tags = &globalconf.screens[phys_screen].tags;
buffer_t buf;
buffer_inita(&buf, BUFSIZ);
for(int i = 0; i < tags->len; i++)
{
buffer_adds(&buf, tags->tab[i]->name);
buffer_addc(&buf, '\0');
}
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
xutil_screen_get(globalconf.connection, phys_screen)->root,
_NET_DESKTOP_NAMES, UTF8_STRING, 8, buf.len, buf.s);
buffer_wipe(&buf);
}
/** Update the work area space for each physical screen and each desktop.
* \param phys_screen The physical screen id.
*/
void
ewmh_update_workarea(int phys_screen)
{
tag_array_t *tags = &globalconf.screens[phys_screen].tags;
uint32_t *area = p_alloca(uint32_t, tags->len * 4);
area_t geom = screen_area_get(phys_screen,
globalconf.screens[phys_screen].statusbar,
&globalconf.screens[phys_screen].padding,
true);
for(int i = 0; i < tags->len; i++)
{
area[4 * i + 0] = geom.x;
area[4 * i + 1] = geom.y;
area[4 * i + 2] = geom.width;
area[4 * i + 3] = geom.height;
}
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
xutil_screen_get(globalconf.connection, phys_screen)->root,
_NET_WORKAREA, CARDINAL, 32, tags->len * 4, area);
}
void
ewmh_update_net_active_window(int phys_screen)
{
xcb_window_t win;
if(globalconf.screen_focus->client_focus
&& globalconf.screen_focus->client_focus->phys_screen == phys_screen)
win = globalconf.screen_focus->client_focus->win;
else
win = XCB_NONE;
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
xutil_screen_get(globalconf.connection, phys_screen)->root,
_NET_ACTIVE_WINDOW, WINDOW, 32, 1, &win);
}
static void
ewmh_process_state_atom(client_t *c, xcb_atom_t state, int set)
{
if(state == _NET_WM_STATE_STICKY)
{
if(set == _NET_WM_STATE_REMOVE)
client_setsticky(c, false);
else if(set == _NET_WM_STATE_ADD)
client_setsticky(c, true);
else if(set == _NET_WM_STATE_TOGGLE)
client_setsticky(c, !c->issticky);
}
else if(state == _NET_WM_STATE_SKIP_TASKBAR)
{
if(set == _NET_WM_STATE_REMOVE)
{
c->skiptb = false;
ewmh_client_update_hints(c);
}
else if(set == _NET_WM_STATE_ADD)
{
c->skiptb = true;
ewmh_client_update_hints(c);
}
else if(set == _NET_WM_STATE_TOGGLE)
{
c->skiptb = !c->skiptb;
ewmh_client_update_hints(c);
}
}
else if(state == _NET_WM_STATE_FULLSCREEN)
{
if(set == _NET_WM_STATE_REMOVE)
client_setfullscreen(c, false);
else if(set == _NET_WM_STATE_ADD)
client_setfullscreen(c, true);
else if(set == _NET_WM_STATE_TOGGLE)
client_setfullscreen(c, !c->isfullscreen);
}
else if(state == _NET_WM_STATE_ABOVE)
{
if(set == _NET_WM_STATE_REMOVE)
client_setabove(c, false);
else if(set == _NET_WM_STATE_ADD)
client_setabove(c, true);
else if(set == _NET_WM_STATE_TOGGLE)
client_setabove(c, !c->isabove);
}
else if(state == _NET_WM_STATE_BELOW)
{
if(set == _NET_WM_STATE_REMOVE)
client_setbelow(c, false);
else if(set == _NET_WM_STATE_ADD)
client_setbelow(c, true);
else if(set == _NET_WM_STATE_TOGGLE)
client_setbelow(c, !c->isbelow);
}
else if(state == _NET_WM_STATE_MODAL)
{
if(set == _NET_WM_STATE_REMOVE)
client_setmodal(c, false);
else if(set == _NET_WM_STATE_ADD)
client_setmodal(c, true);
else if(set == _NET_WM_STATE_TOGGLE)
client_setmodal(c, !c->ismodal);
}
else if(state == _NET_WM_STATE_HIDDEN)
{
if(set == _NET_WM_STATE_REMOVE)
client_setminimized(c, false);
else if(set == _NET_WM_STATE_ADD)
client_setminimized(c, true);
else if(set == _NET_WM_STATE_TOGGLE)
client_setminimized(c, !c->isminimized);
}
else if(state == _NET_WM_STATE_DEMANDS_ATTENTION)
{
if(set == _NET_WM_STATE_REMOVE)
c->isurgent = false;
else if(set == _NET_WM_STATE_ADD)
c->isurgent = true;
else if(set == _NET_WM_STATE_TOGGLE)
c->isurgent = !c->isurgent;
/* execute hook */
luaA_client_userdata_new(globalconf.L, c);
luaA_dofunction(globalconf.L, globalconf.hooks.urgent, 1, 0);
widget_invalidate_cache(c->screen, WIDGET_CACHE_CLIENTS);
}
}
int
ewmh_process_client_message(xcb_client_message_event_t *ev)
{
client_t *c;
int screen;
if(ev->type == _NET_CURRENT_DESKTOP)
for(screen = 0;
screen < xcb_setup_roots_length(xcb_get_setup(globalconf.connection));
screen++)
{
if(ev->window == xutil_screen_get(globalconf.connection, screen)->root)
tag_view_only_byindex(screen, ev->data.data32[0]);
}
else if(ev->type == _NET_CLOSE_WINDOW)
{
if((c = client_getbywin(ev->window)))
client_kill(c);
}
else if(ev->type == _NET_WM_DESKTOP)
{
if((c = client_getbywin(ev->window)))
{
tag_array_t *tags = &globalconf.screens[c->screen].tags;
if(ev->data.data32[0] == 0xffffffff)
c->issticky = true;
else
for(int i = 0; i < tags->len; i++)
if((int)ev->data.data32[0] == i)
tag_client(c, tags->tab[i]);
else
untag_client(c, tags->tab[i]);
}
}
else if(ev->type == _NET_WM_STATE)
{
if((c = client_getbywin(ev->window)))
{
ewmh_process_state_atom(c, (xcb_atom_t) ev->data.data32[1], ev->data.data32[0]);
if(ev->data.data32[2])
ewmh_process_state_atom(c, (xcb_atom_t) ev->data.data32[2],
ev->data.data32[0]);
}
}
return 0;
}
/** Update client EWMH hints.
* \param c The client.
*/
void
ewmh_client_update_hints(client_t *c)
{
xcb_atom_t state[8]; /* number of defined state atoms */
int i = 0;
if(c->ismodal)
state[i++] = _NET_WM_STATE_MODAL;
if(c->isfullscreen)
state[i++] = _NET_WM_STATE_FULLSCREEN;
if(c->issticky)
state[i++] = _NET_WM_STATE_STICKY;
if(c->skiptb)
state[i++] = _NET_WM_STATE_SKIP_TASKBAR;
if(c->isabove)
state[i++] = _NET_WM_STATE_ABOVE;
if(c->isbelow)
state[i++] = _NET_WM_STATE_BELOW;
if(c->isminimized)
state[i++] = _NET_WM_STATE_HIDDEN;
if(c->isurgent)
state[i++] = _NET_WM_STATE_DEMANDS_ATTENTION;
xcb_change_property(globalconf.connection, XCB_PROP_MODE_REPLACE,
c->win, _NET_WM_STATE, ATOM, 32, i, state);
}
void
ewmh_client_check_hints(client_t *c)
{
xcb_atom_t *state;
void *data = NULL;
int desktop;
xcb_get_property_cookie_t c0, c1, c2;
xcb_get_property_reply_t *reply;
/* Send the GetProperty requests which will be processed later */
c0 = xcb_get_property_unchecked(globalconf.connection, false, c->win,
_NET_WM_DESKTOP, XCB_GET_PROPERTY_TYPE_ANY, 0, 1);
c1 = xcb_get_property_unchecked(globalconf.connection, false, c->win,
_NET_WM_STATE, ATOM, 0, UINT32_MAX);
c2 = xcb_get_property_unchecked(globalconf.connection, false, c->win,
_NET_WM_WINDOW_TYPE, ATOM, 0, UINT32_MAX);
reply = xcb_get_property_reply(globalconf.connection, c0, NULL);
if(reply && reply->value_len && (data = xcb_get_property_value(reply)))
{
tag_array_t *tags = &globalconf.screens[c->screen].tags;
desktop = *(uint32_t *) data;
if(desktop == -1)
c->issticky = true;
else
for(int i = 0; i < tags->len; i++)
if(desktop == i)
tag_client(c, tags->tab[i]);
else
untag_client(c, tags->tab[i]);
}
p_delete(&reply);
reply = xcb_get_property_reply(globalconf.connection, c1, NULL);
if(reply && (data = xcb_get_property_value(reply)))
{
state = (xcb_atom_t *) data;
for(int i = 0; i < xcb_get_property_value_length(reply); i++)
ewmh_process_state_atom(c, state[i], _NET_WM_STATE_ADD);
}
p_delete(&reply);
reply = xcb_get_property_reply(globalconf.connection, c2, NULL);
if(reply && (data = xcb_get_property_value(reply)))
{
state = (xcb_atom_t *) data;
for(int i = 0; i < xcb_get_property_value_length(reply); i++)
if(state[i] == _NET_WM_WINDOW_TYPE_DESKTOP)
c->type = WINDOW_TYPE_DESKTOP;
else if(state[i] == _NET_WM_WINDOW_TYPE_DIALOG)
c->type = WINDOW_TYPE_DIALOG;
else if(state[i] == _NET_WM_WINDOW_TYPE_SPLASH)
c->type = WINDOW_TYPE_SPLASH;
else if(state[i] == _NET_WM_WINDOW_TYPE_DOCK)
c->type = WINDOW_TYPE_DOCK;
else
c->type = WINDOW_TYPE_NORMAL;
}
p_delete(&reply);
}
/** Update the WM strut of a client.
* \param c The client.
*/
void
ewmh_client_strut_update(client_t *c, xcb_get_property_reply_t *strut_r)
{
void *data;
xcb_get_property_reply_t *mstrut_r = NULL;
if(!strut_r)
{
xcb_get_property_cookie_t strut_q = xcb_get_property_unchecked(globalconf.connection, false, c->win,
_NET_WM_STRUT_PARTIAL, CARDINAL, 0, 12);
strut_r = mstrut_r = xcb_get_property_reply(globalconf.connection, strut_q, NULL);
}
if(strut_r
&& strut_r->value_len
&& (data = xcb_get_property_value(strut_r)))
{
uint32_t *strut = data;
if(c->strut.left != strut[0]
|| c->strut.right != strut[1]
|| c->strut.top != strut[2]
|| c->strut.bottom != strut[3]
|| c->strut.left_start_y != strut[4]
|| c->strut.left_end_y != strut[5]
|| c->strut.right_start_y != strut[6]
|| c->strut.right_end_y != strut[7]
|| c->strut.top_start_x != strut[8]
|| c->strut.top_end_x != strut[9]
|| c->strut.bottom_start_x != strut[10]
|| c->strut.bottom_end_x != strut[11])
{
c->strut.left = strut[0];
c->strut.right = strut[1];
c->strut.top = strut[2];
c->strut.bottom = strut[3];
c->strut.left_start_y = strut[4];
c->strut.left_end_y = strut[5];
c->strut.right_start_y = strut[6];
c->strut.right_end_y = strut[7];
c->strut.top_start_x = strut[8];
c->strut.top_end_x = strut[9];
c->strut.bottom_start_x = strut[10];
c->strut.bottom_end_x = strut[11];
client_need_arrange(c);
/* All the statusbars (may) need to be repositioned */
for(int screen = 0; screen < globalconf.nscreen; screen++)
for(statusbar_t *s = globalconf.screens[screen].statusbar; s; s = s->next)
statusbar_position_update(s);
}
}
p_delete(&mstrut_r);
}
/** Send request to get NET_WM_ICON (EWMH)
* \param w The window.
* \return The cookie associated with the request.
*/
xcb_get_property_cookie_t
ewmh_window_icon_get_unchecked(xcb_window_t w)
{
return xcb_get_property_unchecked(globalconf.connection, false, w,
_NET_WM_ICON, CARDINAL, 0, UINT32_MAX);
}
image_t *
ewmh_window_icon_from_reply(xcb_get_property_reply_t *r)
{
uint32_t *data;
if(!r || r->type != CARDINAL || r->format != 32 || r->length < 2 ||
!(data = (uint32_t *) xcb_get_property_value(r)))
return NULL;
if(data[0] && data[1])
return image_new_from_argb32(data[0], data[1], data + 2);
return NULL;
}
/** Get NET_WM_ICON.
* \param cookie The cookie.
* \return A draw_image_t structure which must be deleted after usage.
*/
image_t *
ewmh_window_icon_get_reply(xcb_get_property_cookie_t cookie)
{
xcb_get_property_reply_t *r = xcb_get_property_reply(globalconf.connection, cookie, NULL);
image_t *icon = ewmh_window_icon_from_reply(r);
p_delete(&r);
return icon;
}
// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80
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