cwm/group.c
tedu 0884d38e3b we lose track of highstack somewhere, so recompute it before we need it.
fixes a crash reported by christian neukirchen.  ok okan
2011-02-13 17:25:20 +00:00

544 lines
12 KiB
C

/*
* calmwm - the calm window manager
*
* Copyright (c) 2004 Andy Adamson <dros@monkey.org>
* Copyright (c) 2004,2005 Marius Aamodt Eriksen <marius@monkey.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* $Id$
*/
#include <sys/param.h>
#include <sys/queue.h>
#include <assert.h>
#include <err.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include "calmwm.h"
static void group_add(struct group_ctx *, struct client_ctx *);
static void group_remove(struct client_ctx *);
static void group_hide(struct screen_ctx *, struct group_ctx *);
static void group_show(struct screen_ctx *, struct group_ctx *);
static void group_fix_hidden_state(struct group_ctx *);
static void group_setactive(struct screen_ctx *, long);
static void group_set_names(struct screen_ctx *);
const char *shortcut_to_name[] = {
"nogroup", "one", "two", "three", "four", "five", "six",
"seven", "eight", "nine"
};
static void
group_add(struct group_ctx *gc, struct client_ctx *cc)
{
long no;
if (cc == NULL || gc == NULL)
errx(1, "group_add: a ctx is NULL");
no = gc->shortcut - 1;
if (cc->group == gc)
return;
if (cc->group != NULL)
TAILQ_REMOVE(&cc->group->clients, cc, group_entry);
XChangeProperty(X_Dpy, cc->win, _NET_WM_DESKTOP, XA_CARDINAL,
32, PropModeReplace, (unsigned char *)&no, 1);
TAILQ_INSERT_TAIL(&gc->clients, cc, group_entry);
cc->group = gc;
}
static void
group_remove(struct client_ctx *cc)
{
long no = 0xffffffff;
if (cc == NULL || cc->group == NULL)
errx(1, "group_remove: a ctx is NULL");
XChangeProperty(X_Dpy, cc->win, _NET_WM_DESKTOP, XA_CARDINAL,
32, PropModeReplace, (unsigned char *)&no, 1);
TAILQ_REMOVE(&cc->group->clients, cc, group_entry);
cc->group = NULL;
}
static void
group_hide(struct screen_ctx *sc, struct group_ctx *gc)
{
struct client_ctx *cc;
screen_updatestackingorder(sc);
gc->nhidden = 0;
gc->highstack = 0;
TAILQ_FOREACH(cc, &gc->clients, group_entry) {
client_hide(cc);
gc->nhidden++;
if (cc->stackingorder > gc->highstack)
gc->highstack = cc->stackingorder;
}
gc->hidden = 1; /* XXX: equivalent to gc->nhidden > 0 */
}
static void
group_show(struct screen_ctx *sc, struct group_ctx *gc)
{
struct client_ctx *cc;
Window *winlist;
u_int i;
int lastempty = -1;
gc->highstack = 0;
TAILQ_FOREACH(cc, &gc->clients, group_entry) {
if (cc->stackingorder > gc->highstack)
gc->highstack = cc->stackingorder;
}
winlist = (Window *) xcalloc(sizeof(*winlist), (gc->highstack + 1));
/*
* Invert the stacking order as XRestackWindows() expects them
* top-to-bottom.
*/
TAILQ_FOREACH(cc, &gc->clients, group_entry) {
winlist[gc->highstack - cc->stackingorder] = cc->win;
client_unhide(cc);
}
/* Un-sparseify */
for (i = 0; i <= gc->highstack; i++) {
if (!winlist[i] && lastempty == -1)
lastempty = i;
else if (winlist[i] && lastempty != -1) {
winlist[lastempty] = winlist[i];
if (++lastempty == i)
lastempty = -1;
}
}
XRestackWindows(X_Dpy, winlist, gc->nhidden);
xfree(winlist);
gc->hidden = 0;
group_setactive(sc, gc->shortcut - 1);
}
void
group_init(struct screen_ctx *sc)
{
int i;
long viewports[2] = {0, 0};
long ndesks = CALMWM_NGROUPS, zero = 0;
TAILQ_INIT(&sc->groupq);
sc->group_hideall = 0;
/* see if any group names have already been set and update the property
* with ours if they'll have changed.
*/
group_update_names(sc);
for (i = 0; i < CALMWM_NGROUPS; i++) {
TAILQ_INIT(&sc->groups[i].clients);
sc->groups[i].hidden = 0;
sc->groups[i].shortcut = i + 1;
TAILQ_INSERT_TAIL(&sc->groupq, &sc->groups[i], entry);
}
/* we don't support large desktops, so this is always (0, 0) */
XChangeProperty(X_Dpy, sc->rootwin, _NET_DESKTOP_VIEWPORT,
XA_CARDINAL, 32, PropModeReplace, (unsigned char *)viewports, 2);
XChangeProperty(X_Dpy, sc->rootwin, _NET_NUMBER_OF_DESKTOPS,
XA_CARDINAL, 32, PropModeReplace, (unsigned char *)&ndesks, 1);
/*
* we don't use virtual roots, so make sure it's not there from a
* previous wm.
*/
XDeleteProperty(X_Dpy, sc->rootwin, _NET_VIRTUAL_ROOTS);
/*
* We don't really have a ``showing desktop'' mode, so this is zero
* always. XXX Note that when we hide all groups, or when all groups
* are hidden we could technically set this later on.
*/
XChangeProperty(X_Dpy, sc->rootwin, _NET_SHOWING_DESKTOP,
XA_CARDINAL, 32, PropModeReplace, (unsigned char *)&zero, 1);
group_setactive(sc, 0);
}
void
group_make_autogroup(struct conf *conf, char *val, int no)
{
struct autogroupwin *aw;
char *p;
aw = xcalloc(1, sizeof(*aw));
if ((p = strchr(val, ',')) == NULL) {
aw->name = NULL;
aw->class = xstrdup(val);
} else {
*(p++) = '\0';
aw->name = xstrdup(val);
aw->class = xstrdup(p);
}
aw->num = no;
TAILQ_INSERT_TAIL(&conf->autogroupq, aw, entry);
}
static void
group_setactive(struct screen_ctx *sc, long idx)
{
sc->group_active = &sc->groups[idx];
XChangeProperty(X_Dpy, sc->rootwin, _NET_CURRENT_DESKTOP,
XA_CARDINAL, 32, PropModeReplace, (unsigned char *)&idx, 1);
}
void
group_movetogroup(struct client_ctx *cc, int idx)
{
struct screen_ctx *sc = cc->sc;
if (idx < 0 || idx >= CALMWM_NGROUPS)
err(1, "group_movetogroup: index out of range (%d)", idx);
if(sc->group_active != &sc->groups[idx])
client_hide(cc);
group_add(&sc->groups[idx], cc);
}
/*
* Colouring for groups upon add/remove.
*/
void
group_sticky_toggle_enter(struct client_ctx *cc)
{
struct screen_ctx *sc = cc->sc;
struct group_ctx *gc;
gc = sc->group_active;
if (gc == cc->group) {
group_remove(cc);
cc->highlight = CLIENT_HIGHLIGHT_UNGROUP;
} else {
group_add(gc, cc);
cc->highlight = CLIENT_HIGHLIGHT_GROUP;
}
client_draw_border(cc);
}
void
group_sticky_toggle_exit(struct client_ctx *cc)
{
cc->highlight = 0;
client_draw_border(cc);
}
/*
* if group_hidetoggle would produce no effect, toggle the group's hidden state
*/
static void
group_fix_hidden_state(struct group_ctx *gc)
{
struct client_ctx *cc;
int same = 0;
TAILQ_FOREACH(cc, &gc->clients, group_entry) {
if (gc->hidden == ((cc->flags & CLIENT_HIDDEN) ? 1 : 0))
same++;
}
if (same == 0)
gc->hidden = !gc->hidden;
}
void
group_hidetoggle(struct screen_ctx *sc, int idx)
{
struct group_ctx *gc;
if (idx < 0 || idx >= CALMWM_NGROUPS)
err(1, "group_hidetoggle: index out of range (%d)", idx);
gc = &sc->groups[idx];
group_fix_hidden_state(gc);
if (gc->hidden)
group_show(sc, gc);
else {
group_hide(sc, gc);
/* XXX wtf? */
if (TAILQ_EMPTY(&gc->clients))
group_setactive(sc, idx);
}
}
void
group_only(struct screen_ctx *sc, int idx)
{
int i;
if (idx < 0 || idx >= CALMWM_NGROUPS)
err(1, "group_only: index out of range (%d)", idx);
for (i = 0; i < CALMWM_NGROUPS; i++) {
if (i == idx)
group_show(sc, &sc->groups[i]);
else
group_hide(sc, &sc->groups[i]);
}
}
/*
* Cycle through active groups. If none exist, then just stay put.
*/
void
group_cycle(struct screen_ctx *sc, int reverse)
{
struct group_ctx *gc, *showgroup = NULL;
assert(sc->group_active != NULL);
gc = sc->group_active;
for (;;) {
gc = reverse ? TAILQ_PREV(gc, group_ctx_q, entry) :
TAILQ_NEXT(gc, entry);
if (gc == NULL)
gc = reverse ? TAILQ_LAST(&sc->groupq, group_ctx_q) :
TAILQ_FIRST(&sc->groupq);
if (gc == sc->group_active)
break;
if (!TAILQ_EMPTY(&gc->clients) && showgroup == NULL)
showgroup = gc;
else if (!gc->hidden)
group_hide(sc, gc);
}
if (showgroup == NULL)
return;
group_hide(sc, sc->group_active);
if (showgroup->hidden)
group_show(sc, showgroup);
else
group_setactive(sc, showgroup->shortcut - 1);
}
/* called when a client is deleted */
void
group_client_delete(struct client_ctx *cc)
{
if (cc->group == NULL)
return;
TAILQ_REMOVE(&cc->group->clients, cc, group_entry);
cc->group = NULL; /* he he */
}
void
group_menu(XButtonEvent *e)
{
struct screen_ctx *sc;
struct group_ctx *gc;
struct menu *mi;
struct menu_q menuq;
int i;
sc = screen_fromroot(e->root);
TAILQ_INIT(&menuq);
for (i = 0; i < CALMWM_NGROUPS; i++) {
gc = &sc->groups[i];
if (TAILQ_EMPTY(&gc->clients))
continue;
mi = xcalloc(1, sizeof(*mi));
if (gc->hidden)
snprintf(mi->text, sizeof(mi->text), "%d: [%s]",
gc->shortcut, sc->group_names[i]);
else
snprintf(mi->text, sizeof(mi->text), "%d: %s",
gc->shortcut, sc->group_names[i]);
mi->ctx = gc;
TAILQ_INSERT_TAIL(&menuq, mi, entry);
}
if (TAILQ_EMPTY(&menuq))
return;
mi = menu_filter(sc, &menuq, NULL, NULL, 0, NULL, NULL);
if (mi == NULL || mi->ctx == NULL)
goto cleanup;
gc = (struct group_ctx *)mi->ctx;
(gc->hidden) ? group_show(sc, gc) : group_hide(sc, gc);
cleanup:
while ((mi = TAILQ_FIRST(&menuq)) != NULL) {
TAILQ_REMOVE(&menuq, mi, entry);
xfree(mi);
}
}
void
group_alltoggle(struct screen_ctx *sc)
{
int i;
for (i = 0; i < CALMWM_NGROUPS; i++) {
if (sc->group_hideall)
group_show(sc, &sc->groups[i]);
else
group_hide(sc, &sc->groups[i]);
}
sc->group_hideall = (!sc->group_hideall);
}
void
group_autogroup(struct client_ctx *cc)
{
struct screen_ctx *sc = cc->sc;
struct autogroupwin *aw;
struct group_ctx *gc;
int no = -1;
long *grpno;
if (cc->app_class == NULL || cc->app_name == NULL)
return;
if (xu_getprop(cc->win, _NET_WM_DESKTOP, XA_CARDINAL,
1, (unsigned char **)&grpno) > 0) {
if (*grpno == 0xffffffff)
no = 0;
else if (*grpno > CALMWM_NGROUPS || *grpno < 0)
no = CALMWM_NGROUPS - 1;
else
no = *grpno + 1;
XFree(grpno);
} else {
TAILQ_FOREACH(aw, &Conf.autogroupq, entry) {
if (strcmp(aw->class, cc->app_class) == 0 &&
(aw->name == NULL ||
strcmp(aw->name, cc->app_name) == 0)) {
no = aw->num;
break;
}
}
}
/* no group please */
if (no == 0)
return;
TAILQ_FOREACH(gc, &sc->groupq, entry) {
if (gc->shortcut == no) {
group_add(gc, cc);
return;
}
}
if (Conf.flags & CONF_STICKY_GROUPS)
group_add(sc->group_active, cc);
}
void
group_update_names(struct screen_ctx *sc)
{
char **strings, *p;
unsigned char *prop_ret;
Atom type_ret;
int format_ret, i = 0, nstrings = 0, n, setnames = 0;
unsigned long bytes_after, num_ret;
if (XGetWindowProperty(X_Dpy, sc->rootwin, _NET_DESKTOP_NAMES, 0,
0xffffff, False, UTF8_STRING, &type_ret, &format_ret,
&num_ret, &bytes_after, &prop_ret) == Success &&
prop_ret != NULL && format_ret == 8) {
/* failure, just set defaults */
prop_ret[num_ret - 1] = '\0'; /* paranoia */
while (i < num_ret) {
if (prop_ret[i++] == '\0')
nstrings++;
}
}
strings = xmalloc((nstrings < CALMWM_NGROUPS ? CALMWM_NGROUPS :
nstrings) * sizeof(*strings));
i = n = 0;
p = prop_ret;
while (n < nstrings) {
strings[n++] = xstrdup(p);
p += strlen(p) + 1;
}
/*
* make sure we always set our defaults if nothing is there to
* replace them.
*/
if (n < CALMWM_NGROUPS) {
setnames = 1;
i = 1;
while (n < CALMWM_NGROUPS)
strings[n++] = xstrdup(shortcut_to_name[i++]);
}
if (prop_ret != NULL)
XFree(prop_ret);
if (sc->group_nonames != 0)
free(sc->group_names);
sc->group_names = strings;
sc->group_nonames = n;
if (setnames)
group_set_names(sc);
}
static void
group_set_names(struct screen_ctx *sc)
{
unsigned char *p, *q;
size_t len = 0, tlen, slen;
int i;
for (i = 0; i < sc->group_nonames; i++)
len += strlen(sc->group_names[i]) + 1;
q = p = xcalloc(len, sizeof(*p));
tlen = len;
for (i = 0; i < sc->group_nonames; i++) {
slen = strlen(sc->group_names[i]) + 1;
strlcpy(q, sc->group_names[i], tlen);
tlen -= slen;
q += slen;
}
XChangeProperty(X_Dpy, sc->rootwin, _NET_DESKTOP_NAMES,
UTF8_STRING, 8, PropModeReplace, p, len);
}