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xenocara/app/cwm/xutil.c
okan f345dc8f9a plug a leak
2015-03-28 21:55:48 +00:00

507 lines
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/*
* calmwm - the calm window manager
*
* Copyright (c) 2004 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.
*
* $OpenBSD: xutil.c,v 1.98 2015/03/28 21:55:48 okan Exp $
*/
#include <sys/types.h>
#include <sys/queue.h>
#include <err.h>
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "calmwm.h"
static unsigned int ign_mods[] = { 0, LockMask, Mod2Mask, Mod2Mask | LockMask };
void
xu_btn_grab(Window win, int mask, unsigned int btn)
{
unsigned int i;
for (i = 0; i < nitems(ign_mods); i++)
XGrabButton(X_Dpy, btn, (mask | ign_mods[i]), win,
False, BUTTONMASK, GrabModeAsync,
GrabModeSync, None, None);
}
void
xu_btn_ungrab(Window win)
{
XUngrabButton(X_Dpy, AnyButton, AnyModifier, win);
}
void
xu_key_grab(Window win, unsigned int mask, KeySym keysym)
{
KeyCode code;
unsigned int i;
code = XKeysymToKeycode(X_Dpy, keysym);
if ((XkbKeycodeToKeysym(X_Dpy, code, 0, 0) != keysym) &&
(XkbKeycodeToKeysym(X_Dpy, code, 0, 1) == keysym))
mask |= ShiftMask;
for (i = 0; i < nitems(ign_mods); i++)
XGrabKey(X_Dpy, code, (mask | ign_mods[i]), win,
True, GrabModeAsync, GrabModeAsync);
}
void
xu_key_ungrab(Window win)
{
XUngrabKey(X_Dpy, AnyKey, AnyModifier, win);
}
int
xu_ptr_grab(Window win, unsigned int mask, Cursor curs)
{
return(XGrabPointer(X_Dpy, win, False, mask,
GrabModeAsync, GrabModeAsync,
None, curs, CurrentTime) == GrabSuccess ? 0 : -1);
}
int
xu_ptr_regrab(unsigned int mask, Cursor curs)
{
return(XChangeActivePointerGrab(X_Dpy, mask,
curs, CurrentTime) == GrabSuccess ? 0 : -1);
}
void
xu_ptr_ungrab(void)
{
XUngrabPointer(X_Dpy, CurrentTime);
}
void
xu_ptr_getpos(Window win, int *x, int *y)
{
Window w0, w1;
int tmp0, tmp1;
unsigned int tmp2;
XQueryPointer(X_Dpy, win, &w0, &w1, &tmp0, &tmp1, x, y, &tmp2);
}
void
xu_ptr_setpos(Window win, int x, int y)
{
XWarpPointer(X_Dpy, None, win, 0, 0, 0, 0, x, y);
}
int
xu_getprop(Window win, Atom atm, Atom type, long len, unsigned char **p)
{
Atom realtype;
unsigned long n, extra;
int format;
if (XGetWindowProperty(X_Dpy, win, atm, 0L, len, False, type,
&realtype, &format, &n, &extra, p) != Success || *p == NULL)
return(-1);
if (n == 0)
XFree(*p);
return(n);
}
int
xu_getstrprop(Window win, Atom atm, char **text) {
XTextProperty prop;
char **list;
int nitems = 0;
*text = NULL;
XGetTextProperty(X_Dpy, win, &prop, atm);
if (!prop.nitems)
return(0);
if (Xutf8TextPropertyToTextList(X_Dpy, &prop, &list,
&nitems) == Success && nitems > 0 && *list) {
if (nitems > 1) {
XTextProperty prop2;
if (Xutf8TextListToTextProperty(X_Dpy, list, nitems,
XUTF8StringStyle, &prop2) == Success) {
*text = xstrdup((const char *)prop2.value);
XFree(prop2.value);
}
} else {
*text = xstrdup(*list);
}
XFreeStringList(list);
}
XFree(prop.value);
return(nitems);
}
/* Root Window Properties */
void
xu_ewmh_net_supported(struct screen_ctx *sc)
{
XChangeProperty(X_Dpy, sc->rootwin, ewmh[_NET_SUPPORTED],
XA_ATOM, 32, PropModeReplace, (unsigned char *)ewmh, EWMH_NITEMS);
}
void
xu_ewmh_net_supported_wm_check(struct screen_ctx *sc)
{
Window w;
w = XCreateSimpleWindow(X_Dpy, sc->rootwin, -1, -1, 1, 1, 0, 0, 0);
XChangeProperty(X_Dpy, sc->rootwin, ewmh[_NET_SUPPORTING_WM_CHECK],
XA_WINDOW, 32, PropModeReplace, (unsigned char *)&w, 1);
XChangeProperty(X_Dpy, w, ewmh[_NET_SUPPORTING_WM_CHECK],
XA_WINDOW, 32, PropModeReplace, (unsigned char *)&w, 1);
XChangeProperty(X_Dpy, w, ewmh[_NET_WM_NAME],
cwmh[UTF8_STRING], 8, PropModeReplace, (unsigned char *)WMNAME,
strlen(WMNAME));
}
void
xu_ewmh_net_desktop_geometry(struct screen_ctx *sc)
{
long geom[2] = { sc->view.w, sc->view.h };
XChangeProperty(X_Dpy, sc->rootwin, ewmh[_NET_DESKTOP_GEOMETRY],
XA_CARDINAL, 32, PropModeReplace, (unsigned char *)geom , 2);
}
void
xu_ewmh_net_workarea(struct screen_ctx *sc)
{
long workareas[CALMWM_NGROUPS][4];
int i;
for (i = 0; i < CALMWM_NGROUPS; i++) {
workareas[i][0] = sc->work.x;
workareas[i][1] = sc->work.y;
workareas[i][2] = sc->work.w;
workareas[i][3] = sc->work.h;
}
XChangeProperty(X_Dpy, sc->rootwin, ewmh[_NET_WORKAREA],
XA_CARDINAL, 32, PropModeReplace, (unsigned char *)workareas,
CALMWM_NGROUPS * 4);
}
void
xu_ewmh_net_client_list(struct screen_ctx *sc)
{
struct client_ctx *cc;
Window *winlist;
int i = 0, j = 0;
TAILQ_FOREACH(cc, &sc->clientq, entry)
i++;
if (i == 0)
return;
winlist = xcalloc(i, sizeof(*winlist));
TAILQ_FOREACH(cc, &sc->clientq, entry)
winlist[j++] = cc->win;
XChangeProperty(X_Dpy, sc->rootwin, ewmh[_NET_CLIENT_LIST],
XA_WINDOW, 32, PropModeReplace, (unsigned char *)winlist, i);
free(winlist);
}
void
xu_ewmh_net_active_window(struct screen_ctx *sc, Window w)
{
XChangeProperty(X_Dpy, sc->rootwin, ewmh[_NET_ACTIVE_WINDOW],
XA_WINDOW, 32, PropModeReplace, (unsigned char *)&w, 1);
}
void
xu_ewmh_net_wm_desktop_viewport(struct screen_ctx *sc)
{
long viewports[2] = {0, 0};
/* We don't support large desktops, so this is (0, 0). */
XChangeProperty(X_Dpy, sc->rootwin, ewmh[_NET_DESKTOP_VIEWPORT],
XA_CARDINAL, 32, PropModeReplace, (unsigned char *)viewports, 2);
}
void
xu_ewmh_net_wm_number_of_desktops(struct screen_ctx *sc)
{
long ndesks = CALMWM_NGROUPS;
XChangeProperty(X_Dpy, sc->rootwin, ewmh[_NET_NUMBER_OF_DESKTOPS],
XA_CARDINAL, 32, PropModeReplace, (unsigned char *)&ndesks, 1);
}
void
xu_ewmh_net_showing_desktop(struct screen_ctx *sc)
{
long zero = 0;
/* We don't support `showing desktop' mode, so this is zero.
* 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, ewmh[_NET_SHOWING_DESKTOP],
XA_CARDINAL, 32, PropModeReplace, (unsigned char *)&zero, 1);
}
void
xu_ewmh_net_virtual_roots(struct screen_ctx *sc)
{
/* We don't support virtual roots, so delete if set by previous wm. */
XDeleteProperty(X_Dpy, sc->rootwin, ewmh[_NET_VIRTUAL_ROOTS]);
}
void
xu_ewmh_net_current_desktop(struct screen_ctx *sc)
{
long num = sc->group_active->num;
XChangeProperty(X_Dpy, sc->rootwin, ewmh[_NET_CURRENT_DESKTOP],
XA_CARDINAL, 32, PropModeReplace, (unsigned char *)&num, 1);
}
void
xu_ewmh_net_desktop_names(struct screen_ctx *sc)
{
struct group_ctx *gc;
char *p, *q;
unsigned char *prop_ret;
int i = 0, j = 0, nstrings = 0, n = 0;
size_t len = 0, tlen, slen;
/* Let group names be overwritten if _NET_DESKTOP_NAMES is set. */
if ((j = xu_getprop(sc->rootwin, ewmh[_NET_DESKTOP_NAMES],
cwmh[UTF8_STRING], 0xffffff, (unsigned char **)&prop_ret)) > 0) {
prop_ret[j - 1] = '\0'; /* paranoia */
while (i < j) {
if (prop_ret[i++] == '\0')
nstrings++;
}
}
p = (char *)prop_ret;
while (n < nstrings) {
TAILQ_FOREACH(gc, &sc->groupq, entry) {
if (gc->num == n) {
free(gc->name);
gc->name = xstrdup(p);
p += strlen(p) + 1;
break;
}
}
n++;
}
if (prop_ret != NULL)
XFree(prop_ret);
TAILQ_FOREACH(gc, &sc->groupq, entry)
len += strlen(gc->name) + 1;
q = p = xcalloc(len, sizeof(*p));
tlen = len;
TAILQ_FOREACH(gc, &sc->groupq, entry) {
slen = strlen(gc->name) + 1;
(void)strlcpy(q, gc->name, tlen);
tlen -= slen;
q += slen;
}
XChangeProperty(X_Dpy, sc->rootwin, ewmh[_NET_DESKTOP_NAMES],
cwmh[UTF8_STRING], 8, PropModeReplace, (unsigned char *)p, len);
free(p);
}
/* Application Window Properties */
void
xu_ewmh_net_wm_desktop(struct client_ctx *cc)
{
long num = 0xffffffff;
if (cc->group)
num = cc->group->num;
XChangeProperty(X_Dpy, cc->win, ewmh[_NET_WM_DESKTOP],
XA_CARDINAL, 32, PropModeReplace, (unsigned char *)&num, 1);
}
Atom *
xu_ewmh_get_net_wm_state(struct client_ctx *cc, int *n)
{
Atom *state, *p = NULL;
if ((*n = xu_getprop(cc->win, ewmh[_NET_WM_STATE], XA_ATOM, 64L,
(unsigned char **)&p)) <= 0)
return(NULL);
state = xcalloc(*n, sizeof(Atom));
(void)memcpy(state, p, *n * sizeof(Atom));
XFree((char *)p);
return(state);
}
void
xu_ewmh_handle_net_wm_state_msg(struct client_ctx *cc, int action,
Atom first, Atom second)
{
unsigned int i;
static struct handlers {
int atom;
int property;
void (*toggle)(struct client_ctx *);
} handlers[] = {
{ _NET_WM_STATE_STICKY,
CLIENT_STICKY,
client_toggle_sticky },
{ _NET_WM_STATE_MAXIMIZED_VERT,
CLIENT_VMAXIMIZED,
client_toggle_vmaximize },
{ _NET_WM_STATE_MAXIMIZED_HORZ,
CLIENT_HMAXIMIZED,
client_toggle_hmaximize },
{ _NET_WM_STATE_HIDDEN,
CLIENT_HIDDEN,
client_toggle_hidden },
{ _NET_WM_STATE_FULLSCREEN,
CLIENT_FULLSCREEN,
client_toggle_fullscreen },
{ _NET_WM_STATE_DEMANDS_ATTENTION,
CLIENT_URGENCY,
client_urgency },
};
for (i = 0; i < nitems(handlers); i++) {
if (first != ewmh[handlers[i].atom] &&
second != ewmh[handlers[i].atom])
continue;
switch (action) {
case _NET_WM_STATE_ADD:
if (!(cc->flags & handlers[i].property))
handlers[i].toggle(cc);
break;
case _NET_WM_STATE_REMOVE:
if (cc->flags & handlers[i].property)
handlers[i].toggle(cc);
break;
case _NET_WM_STATE_TOGGLE:
handlers[i].toggle(cc);
}
}
}
void
xu_ewmh_restore_net_wm_state(struct client_ctx *cc)
{
Atom *atoms;
int i, n;
atoms = xu_ewmh_get_net_wm_state(cc, &n);
for (i = 0; i < n; i++) {
if (atoms[i] == ewmh[_NET_WM_STATE_STICKY])
client_toggle_sticky(cc);
if (atoms[i] == ewmh[_NET_WM_STATE_MAXIMIZED_HORZ])
client_toggle_hmaximize(cc);
if (atoms[i] == ewmh[_NET_WM_STATE_MAXIMIZED_VERT])
client_toggle_vmaximize(cc);
if (atoms[i] == ewmh[_NET_WM_STATE_HIDDEN])
client_toggle_hidden(cc);
if (atoms[i] == ewmh[_NET_WM_STATE_FULLSCREEN])
client_toggle_fullscreen(cc);
if (atoms[i] == ewmh[_NET_WM_STATE_DEMANDS_ATTENTION])
client_urgency(cc);
}
free(atoms);
}
void
xu_ewmh_set_net_wm_state(struct client_ctx *cc)
{
Atom *atoms, *oatoms;
int n, i, j;
oatoms = xu_ewmh_get_net_wm_state(cc, &n);
atoms = xcalloc((n + _NET_WM_STATES_NITEMS), sizeof(Atom));
for (i = j = 0; i < n; i++) {
if (oatoms[i] != ewmh[_NET_WM_STATE_STICKY] &&
oatoms[i] != ewmh[_NET_WM_STATE_MAXIMIZED_HORZ] &&
oatoms[i] != ewmh[_NET_WM_STATE_MAXIMIZED_VERT] &&
oatoms[i] != ewmh[_NET_WM_STATE_HIDDEN] &&
oatoms[i] != ewmh[_NET_WM_STATE_FULLSCREEN] &&
oatoms[i] != ewmh[_NET_WM_STATE_DEMANDS_ATTENTION])
atoms[j++] = oatoms[i];
}
free(oatoms);
if (cc->flags & CLIENT_STICKY)
atoms[j++] = ewmh[_NET_WM_STATE_STICKY];
if (cc->flags & CLIENT_HIDDEN)
atoms[j++] = ewmh[_NET_WM_STATE_HIDDEN];
if (cc->flags & CLIENT_FULLSCREEN)
atoms[j++] = ewmh[_NET_WM_STATE_FULLSCREEN];
else {
if (cc->flags & CLIENT_HMAXIMIZED)
atoms[j++] = ewmh[_NET_WM_STATE_MAXIMIZED_HORZ];
if (cc->flags & CLIENT_VMAXIMIZED)
atoms[j++] = ewmh[_NET_WM_STATE_MAXIMIZED_VERT];
}
if (cc->flags & CLIENT_URGENCY)
atoms[j++] = ewmh[_NET_WM_STATE_DEMANDS_ATTENTION];
if (j > 0)
XChangeProperty(X_Dpy, cc->win, ewmh[_NET_WM_STATE],
XA_ATOM, 32, PropModeReplace, (unsigned char *)atoms, j);
else
XDeleteProperty(X_Dpy, cc->win, ewmh[_NET_WM_STATE]);
free(atoms);
}
void
xu_xorcolor(XftColor a, XftColor b, XftColor *r)
{
r->pixel = a.pixel ^ b.pixel;
r->color.red = a.color.red ^ b.color.red;
r->color.green = a.color.green ^ b.color.green;
r->color.blue = a.color.blue ^ b.color.blue;
r->color.alpha = 0xffff;
}
int
xu_xft_width(XftFont *xftfont, const char *text, int len)
{
XGlyphInfo extents;
XftTextExtentsUtf8(X_Dpy, xftfont, (const FcChar8*)text,
len, &extents);
return(extents.xOff);
}
void
xu_xft_draw(struct screen_ctx *sc, const char *text, int color, int x, int y)
{
XftDrawStringUtf8(sc->xftdraw, &sc->xftcolor[color], sc->xftfont,
x, y, (const FcChar8*)text, strlen(text));
}
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