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dwm.c
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/* See LICENSE file for copyright and license details.
*
* dynamic window manager is designed like any other X client as well. It is
* driven through handling X events. In contrast to other X clients, a window
* manager selects for SubstructureRedirectMask on the root window, to receive
* events about window (dis-)appearance. Only one X connection at a time is
* allowed to select for this event mask.
*
* The event handlers of dwm are organized in an array which is accessed
* whenever a new event has been fetched. This allows event dispatching
* in O(1) time.
*
* Each child of the root window is called a client, except windows which have
* set the override_redirect flag. Clients are organized in a linked client
* list on each monitor, the focus history is remembered through a stack list
* on each monitor. Each client contains a bit array to indicate the tags of a
* client.
*
* Keys and tagging rules are organized as arrays and defined in config.h.
*
* To understand everything else, start reading main().
*/
#include "dwm.h"
/* compile-time check if all tags fit into an unsigned int bit array. */
struct NumTags {
char limitexceeded[LENGTH(tags) > 31 ? -1 : 1];
};
void spawn(const Arg *arg) {
if (fork() == 0) {
if (dpy)
close(ConnectionNumber(dpy));
setsid();
execvp(((char **)arg->v)[0], (char **)arg->v);
die("dwm: execvp '%s' failed:", ((char **)arg->v)[0]);
}
}
void spawnenv(const Arg *arg) {
/* same as spawn, but treats arg->v[0] as an environment variable */
if (fork() == 0) {
if (dpy)
close(ConnectionNumber(dpy));
setsid();
execvp(getenv(((char **)arg->v)[0]), (char **)arg->v);
die("dwm: execvp '%s' failed:", ((char **)arg->v)[0]);
}
}
void applyrules(Client *c) {
const char *class, *instance;
unsigned int i;
const Rule *r;
Monitor *m;
XClassHint ch = {NULL, NULL};
/* rule matching */
c->isfloating = 0;
c->tags = 0;
XGetClassHint(dpy, c->win, &ch);
class = ch.res_class ? ch.res_class : broken;
instance = ch.res_name ? ch.res_name : broken;
for (i = 0; i < LENGTH(rules); i++) {
r = &rules[i];
if ((!r->title || strstr(c->name, r->title)) &&
(!r->class || strstr(class, r->class)) &&
(!r->instance || strstr(instance, r->instance))) {
c->isfloating = r->isfloating;
c->tags |= r->tags;
for (m = mons; m && m->num != r->monitor; m = m->next)
;
if (m)
c->mon = m;
}
}
if (ch.res_class)
XFree(ch.res_class);
if (ch.res_name)
XFree(ch.res_name);
c->tags =
c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
}
int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact) {
int baseismin;
Monitor *m = c->mon;
/* set minimum possible */
*w = MAX(1, *w);
*h = MAX(1, *h);
if (interact) {
if (*x > sw)
*x = sw - WIDTH(c);
if (*y > sh)
*y = sh - HEIGHT(c);
if (*x + *w + 2 * c->bw < 0)
*x = 0;
if (*y + *h + 2 * c->bw < 0)
*y = 0;
} else {
if (*x >= m->wx + m->ww)
*x = m->wx + m->ww - WIDTH(c);
if (*y >= m->wy + m->wh)
*y = m->wy + m->wh - HEIGHT(c);
if (*x + *w + 2 * c->bw <= m->wx)
*x = m->wx;
if (*y + *h + 2 * c->bw <= m->wy)
*y = m->wy;
}
if (*h < bh)
*h = bh;
if (*w < bh)
*w = bh;
if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) {
if (!c->hintsvalid)
updatesizehints(c);
/* see last two sentences in ICCCM 4.1.2.3 */
baseismin = c->basew == c->minw && c->baseh == c->minh;
if (!baseismin) { /* temporarily remove base dimensions */
*w -= c->basew;
*h -= c->baseh;
}
/* adjust for aspect limits */
if (c->mina > 0 && c->maxa > 0) {
if (c->maxa < (float)*w / *h)
*w = *h * c->maxa + 0.5;
else if (c->mina < (float)*h / *w)
*h = *w * c->mina + 0.5;
}
if (baseismin) { /* increment calculation requires this */
*w -= c->basew;
*h -= c->baseh;
}
/* adjust for increment value */
if (c->incw)
*w -= *w % c->incw;
if (c->inch)
*h -= *h % c->inch;
/* restore base dimensions */
*w = MAX(*w + c->basew, c->minw);
*h = MAX(*h + c->baseh, c->minh);
if (c->maxw)
*w = MIN(*w, c->maxw);
if (c->maxh)
*h = MIN(*h, c->maxh);
}
return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
}
void arrange(Monitor *m) {
if (m)
showhide(m->stack);
else
for (m = mons; m; m = m->next)
showhide(m->stack);
if (m) {
arrangemon(m);
restack(m);
} else
for (m = mons; m; m = m->next)
arrangemon(m);
}
void arrangemon(Monitor *m) {
strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
if (m->lt[m->sellt]->arrange)
m->lt[m->sellt]->arrange(m);
}
void attach(Client *c) {
c->next = c->mon->clients;
c->mon->clients = c;
}
void attachstack(Client *c) {
c->snext = c->mon->stack;
c->mon->stack = c;
}
void buttonpress(XEvent *e) {
unsigned int i, x, click;
Arg arg = {0};
Client *c;
Monitor *m;
XButtonPressedEvent *ev = &e->xbutton;
click = ClkRootWin;
/* focus monitor if necessary */
if ((m = wintomon(ev->window)) && m != selmon &&
(focusonwheel || (ev->button != Button4 && ev->button != Button5))) {
unfocus(selmon->sel, 1);
selmon = m;
focus(NULL);
}
if (ev->window == selmon->barwin) {
i = x = 0;
do
x += TEXTW(tags[i]);
while (ev->x >= x && ++i < LENGTH(tags));
if (i < LENGTH(tags)) {
click = ClkTagBar;
arg.ui = 1 << i;
} else if (ev->x < x + TEXTW(selmon->ltsymbol))
click = ClkLtSymbol;
else
click = ClkWinTitle;
} else if ((c = wintoclient(ev->window))) {
if (focusonwheel || (ev->button != Button4 && ev->button != Button5))
focus(c);
XAllowEvents(dpy, ReplayPointer, CurrentTime);
click = ClkClientWin;
}
for (i = 0; i < LENGTH(buttons); i++)
if (click == buttons[i].click && buttons[i].func &&
buttons[i].button == ev->button &&
CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
buttons[i].func(
click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
}
void checkotherwm(void) {
xerrorxlib = XSetErrorHandler(xerrorstart);
/* this causes an error if some other window manager is running */
XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
XSync(dpy, False);
XSetErrorHandler(xerror);
XSync(dpy, False);
}
void cleanup(void) {
Arg a = {.ui = ~0};
Layout foo = {"", NULL};
Monitor *m;
size_t i;
view(&a);
selmon->lt[selmon->sellt] = &foo;
for (m = mons; m; m = m->next)
while (m->stack)
unmanage(m->stack, 0);
XUngrabKey(dpy, AnyKey, AnyModifier, root);
while (mons)
cleanupmon(mons);
for (i = 0; i < CurLast; i++)
drw_cur_free(drw, cursor[i]);
for (i = 0; i < LENGTH(color_schemes); i++)
free(scheme[i]);
free(scheme);
XDestroyWindow(dpy, wmcheckwin);
drw_free(drw);
XSync(dpy, False);
XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
}
void cleanupmon(Monitor *mon) {
Monitor *m;
if (mon == mons)
mons = mons->next;
else {
for (m = mons; m && m->next != mon; m = m->next)
;
m->next = mon->next;
}
XUnmapWindow(dpy, mon->barwin);
XDestroyWindow(dpy, mon->barwin);
free(mon);
}
void clientmessage(XEvent *e) {
XClientMessageEvent *cme = &e->xclient;
Client *c = wintoclient(cme->window);
if (!c)
return;
if (cme->message_type == netatom[NetWMState]) {
if (cme->data.l[1] == netatom[NetWMFullscreen] ||
cme->data.l[2] == netatom[NetWMFullscreen])
setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD */
|| (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ &&
!c->isfullscreen)));
} else if (cme->message_type == netatom[NetActiveWindow]) {
if (c != selmon->sel && !c->isurgent)
seturgent(c, 1);
}
}
void configure(Client *c) {
XConfigureEvent ce;
ce.type = ConfigureNotify;
ce.display = dpy;
ce.event = c->win;
ce.window = c->win;
ce.x = c->x;
ce.y = c->y;
ce.width = c->w;
ce.height = c->h;
ce.border_width = c->bw;
ce.above = None;
ce.override_redirect = False;
XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
}
void configurenotify(XEvent *e) {
Monitor *m;
Client *c;
XConfigureEvent *ev = &e->xconfigure;
int dirty;
/* TODO: updategeom handling sucks, needs to be simplified */
if (ev->window == root) {
dirty = (sw != ev->width || sh != ev->height);
sw = ev->width;
sh = ev->height;
if (updategeom() || dirty) {
drw_resize(drw, sw, bh);
updatebars();
for (m = mons; m; m = m->next) {
for (c = m->clients; c; c = c->next)
if (c->isfullscreen)
resizeclient(c, m->mx, m->my, m->mw, m->mh);
XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
}
focus(NULL);
arrange(NULL);
}
}
}
void configurerequest(XEvent *e) {
Client *c;
Monitor *m;
XConfigureRequestEvent *ev = &e->xconfigurerequest;
XWindowChanges wc;
if ((c = wintoclient(ev->window))) {
if (ev->value_mask & CWBorderWidth)
c->bw = ev->border_width;
else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
m = c->mon;
if (ev->value_mask & CWX) {
c->oldx = c->x;
c->x = m->mx + ev->x;
}
if (ev->value_mask & CWY) {
c->oldy = c->y;
c->y = m->my + ev->y;
}
if (ev->value_mask & CWWidth) {
c->oldw = c->w;
c->w = ev->width;
}
if (ev->value_mask & CWHeight) {
c->oldh = c->h;
c->h = ev->height;
}
if ((c->x + c->w) > m->mx + m->mw && c->isfloating)
c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */
if ((c->y + c->h) > m->my + m->mh && c->isfloating)
c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */
if ((ev->value_mask & (CWX | CWY)) &&
!(ev->value_mask & (CWWidth | CWHeight)))
configure(c);
if (ISVISIBLE(c))
XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
} else
configure(c);
} else {
wc.x = ev->x;
wc.y = ev->y;
wc.width = ev->width;
wc.height = ev->height;
wc.border_width = ev->border_width;
wc.sibling = ev->above;
wc.stack_mode = ev->detail;
XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
}
XSync(dpy, False);
}
Monitor *createmon(void) {
Monitor *m;
m = ecalloc(1, sizeof(Monitor));
m->tagset[0] = m->tagset[1] = 1;
m->mfact = mfact;
m->nmaster = nmaster;
m->showbar = showbar;
m->topbar = topbar;
m->gappx = gappx;
m->lt[0] = &layouts[0];
m->lt[1] = &layouts[1 % LENGTH(layouts)];
strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
return m;
}
void destroynotify(XEvent *e) {
Client *c;
XDestroyWindowEvent *ev = &e->xdestroywindow;
if ((c = wintoclient(ev->window)))
unmanage(c, 1);
}
void detach(Client *c) {
Client **tc;
for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next)
;
*tc = c->next;
}
void detachstack(Client *c) {
Client **tc, *t;
for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext)
;
*tc = c->snext;
if (c == c->mon->sel) {
for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext)
;
c->mon->sel = t;
}
}
Monitor *dirtomon(int dir) {
Monitor *m = NULL;
if (dir > 0) {
if (!(m = selmon->next))
m = mons;
} else if (selmon == mons)
for (m = mons; m->next; m = m->next)
;
else
for (m = mons; m->next != selmon; m = m->next)
;
return m;
}
void drawbar(Monitor *m) {
int x, w, tw = 0;
int boxs = drw->fonts->h / 9; // box showing what tags have active windows
int boxw = drw->fonts->h / 6 + 2;
unsigned int i, occ = 0, urg = 0;
char *ts = stext;
char *tp = stext;
int tx = 0;
char ctmp;
Client *c;
if (!m->showbar)
return;
/* draw status first so it can be overdrawn by tags later */
drw_setscheme(drw, scheme[SchemeNorm]);
tw = TEXTW(stext) - lrpad + 2;
while (1) {
if ((unsigned int)*ts > LENGTH(color_schemes)) {
ts++;
continue;
}
ctmp = *ts;
*ts = '\0';
drw_text(drw, m->ww - tw + tx, 0, tw - tx, bh, 0, tp, 0);
tx += TEXTW(tp) - lrpad;
if (ctmp == '\0') {
break;
}
drw_setscheme(drw, scheme[(unsigned int)(ctmp - 1)]);
*ts = ctmp;
tp = ++ts;
}
for (c = m->clients; c; c = c->next) {
occ |= c->tags;
if (c->isurgent)
urg |= c->tags;
}
x = 0;
for (i = 0; i < LENGTH(tags); i++) {
w = TEXTW(tags[i]);
drw_setscheme(
drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]);
drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i);
if (occ & 1 << i)
drw_rect(drw, x + boxs, boxs, boxw, boxw,
m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
urg & 1 << i);
x += w;
}
w = TEXTW(m->ltsymbol);
drw_setscheme(drw, scheme[SchemeNorm]);
x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
if ((w = m->ww - tw - x) > bh) {
if (m->sel) {
drw_setscheme(drw, scheme[SchemeNorm]);
drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0);
if (m->sel->isfloating)
drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0);
} else {
drw_setscheme(drw, scheme[SchemeNorm]);
drw_rect(drw, x, 0, w, bh, 1, 1);
}
}
drw_map(drw, m->barwin, 0, 0, m->ww, bh);
}
void drawbars(void) {
Monitor *m;
for (m = mons; m; m = m->next)
drawbar(m);
}
void expose(XEvent *e) {
Monitor *m;
XExposeEvent *ev = &e->xexpose;
if (ev->count == 0 && (m = wintomon(ev->window)))
drawbar(m);
}
void focus(Client *c) {
if (!c || !ISVISIBLE(c))
for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext)
;
if (selmon->sel && selmon->sel != c)
unfocus(selmon->sel, 0);
if (c) {
if (c->mon != selmon)
selmon = c->mon;
if (c->isurgent)
seturgent(c, 0);
detachstack(c);
attachstack(c);
grabbuttons(c, 1);
XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel);
setfocus(c);
} else {
XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
}
selmon->sel = c;
drawbars();
}
/* there are some broken focus acquiring clients needing extra handling */
void focusin(XEvent *e) {
XFocusChangeEvent *ev = &e->xfocus;
if (selmon->sel && ev->window != selmon->sel->win)
setfocus(selmon->sel);
}
void focusmon(const Arg *arg) {
Monitor *m;
if (!mons->next)
return;
if ((m = dirtomon(arg->i)) == selmon)
return;
unfocus(selmon->sel, 0);
selmon = m;
focus(NULL);
}
void focusstack(const Arg *arg) {
int i = stackpos(arg);
Client *c, *p;
if (i < 0)
return;
for (p = NULL, c = selmon->clients; c && (i || !ISVISIBLE(c));
i -= ISVISIBLE(c) ? 1 : 0, p = c, c = c->next)
;
focus(c ? c : p);
restack(selmon);
}
Atom getatomprop(Client *c, Atom prop) {
int di;
unsigned long dl;
unsigned char *p = NULL;
Atom da, atom = None;
if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM,
&da, &di, &dl, &dl, &p) == Success &&
p) {
atom = *(Atom *)p;
XFree(p);
}
return atom;
}
int getrootptr(int *x, int *y) {
int di;
unsigned int dui;
Window dummy;
return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
}
long getstate(Window w) {
int format;
long result = -1;
unsigned char *p = NULL;
unsigned long n, extra;
Atom real;
if (XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False,
wmatom[WMState], &real, &format, &n, &extra,
(unsigned char **)&p) != Success)
return -1;
if (n != 0)
result = *p;
XFree(p);
return result;
}
int gettextprop(Window w, Atom atom, char *text, unsigned int size) {
char **list = NULL;
int n;
XTextProperty name;
if (!text || size == 0)
return 0;
text[0] = '\0';
if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems)
return 0;
if (name.encoding == XA_STRING) {
strncpy(text, (char *)name.value, size - 1);
} else if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success &&
n > 0 && *list) {
strncpy(text, *list, size - 1);
XFreeStringList(list);
}
text[size - 1] = '\0';
XFree(name.value);
return 1;
}
void grabbuttons(Client *c, int focused) {
updatenumlockmask();
{
unsigned int i, j;
unsigned int modifiers[] = {0, LockMask, numlockmask,
numlockmask | LockMask};
XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
if (!focused)
XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, BUTTONMASK,
GrabModeSync, GrabModeSync, None, None);
for (i = 0; i < LENGTH(buttons); i++)
if (buttons[i].click == ClkClientWin)
for (j = 0; j < LENGTH(modifiers); j++)
XGrabButton(dpy, buttons[i].button, buttons[i].mask | modifiers[j],
c->win, False, BUTTONMASK, GrabModeAsync, GrabModeSync,
None, None);
}
}
void grabkeys(void) {
updatenumlockmask();
{
unsigned int i, j;
unsigned int modifiers[] = {0, LockMask, numlockmask,
numlockmask | LockMask};
KeyCode code;
XUngrabKey(dpy, AnyKey, AnyModifier, root);
for (i = 0; i < LENGTH(keys); i++)
if ((code = XKeysymToKeycode(dpy, keys[i].keysym)))
for (j = 0; j < LENGTH(modifiers); j++)
XGrabKey(dpy, code, keys[i].mod | modifiers[j], root, True,
GrabModeAsync, GrabModeAsync);
}
}
#ifdef XINERAMA
static int isuniquegeom(XineramaScreenInfo *unique, size_t n,
XineramaScreenInfo *info) {
while (n--)
if (unique[n].x_org == info->x_org && unique[n].y_org == info->y_org &&
unique[n].width == info->width && unique[n].height == info->height)
return 0;
return 1;
}
#endif /* XINERAMA */
void keypress(XEvent *e) {
unsigned int i;
KeySym keysym;
XKeyEvent *ev;
ev = &e->xkey;
keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
for (i = 0; i < LENGTH(keys); i++)
if (keysym == keys[i].keysym &&
CLEANMASK(keys[i].mod) == CLEANMASK(ev->state) && keys[i].func)
keys[i].func(&(keys[i].arg));
}
void killclient(const Arg *arg) {
if (!selmon->sel)
return;
if (!sendevent(selmon->sel, wmatom[WMDelete])) {
XGrabServer(dpy);
XSetErrorHandler(xerrordummy);
XSetCloseDownMode(dpy, DestroyAll);
XKillClient(dpy, selmon->sel->win);
XSync(dpy, False);
XSetErrorHandler(xerror);
XUngrabServer(dpy);
}
}
void manage(Window w, XWindowAttributes *wa) {
Client *c, *t = NULL;
Window trans = None;
XWindowChanges wc;
c = ecalloc(1, sizeof(Client));
c->win = w;
/* geometry */
c->x = c->oldx = wa->x;
c->y = c->oldy = wa->y;
c->w = c->oldw = wa->width;
c->h = c->oldh = wa->height;
c->oldbw = wa->border_width;
updatetitle(c);
if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
c->mon = t->mon;
c->tags = t->tags;
} else {
c->mon = selmon;
applyrules(c);
}
if (c->x + WIDTH(c) > c->mon->wx + c->mon->ww)
c->x = c->mon->wx + c->mon->ww - WIDTH(c);
if (c->y + HEIGHT(c) > c->mon->wy + c->mon->wh)
c->y = c->mon->wy + c->mon->wh - HEIGHT(c);
c->x = MAX(c->x, c->mon->wx);
c->y = MAX(c->y, c->mon->wy);
c->bw = borderpx;
wc.border_width = c->bw;
XConfigureWindow(dpy, w, CWBorderWidth, &wc);
XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel);
configure(c); /* propagates border_width, if size doesn't change */
updatewindowtype(c);
updatesizehints(c);
updatewmhints(c);
XSelectInput(dpy, w,
EnterWindowMask | FocusChangeMask | PropertyChangeMask |
StructureNotifyMask);
grabbuttons(c, 0);
if (!c->isfloating)
c->isfloating = c->oldstate = trans != None || c->isfixed;
if (c->isfloating)
XRaiseWindow(dpy, c->win);
attach(c);
attachstack(c);
XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32,
PropModeAppend, (unsigned char *)&(c->win), 1);
XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w,
c->h); /* some windows require this */
setclientstate(c, NormalState);
if (c->mon == selmon)
unfocus(selmon->sel, 0);
c->mon->sel = c;
arrange(c->mon);
XMapWindow(dpy, c->win);
focus(NULL);
}
void mappingnotify(XEvent *e) {
XMappingEvent *ev = &e->xmapping;
XRefreshKeyboardMapping(ev);
if (ev->request == MappingKeyboard)
grabkeys();
}
void maprequest(XEvent *e) {
static XWindowAttributes wa;
XMapRequestEvent *ev = &e->xmaprequest;
if (!XGetWindowAttributes(dpy, ev->window, &wa) || wa.override_redirect)
return;
if (!wintoclient(ev->window))
manage(ev->window, &wa);
}
void movemouse(const Arg *arg) {
int x, y, ocx, ocy, nx, ny;
Client *c;
Monitor *m;
XEvent ev;
Time lasttime = 0;
if (!(c = selmon->sel))
return;
if (c->isfullscreen) /* no support moving fullscreen windows by mouse */
return;
restack(selmon);
ocx = c->x;
ocy = c->y;
if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess)
return;
if (!getrootptr(&x, &y))
return;
do {
XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask, &ev);
switch (ev.type) {
case ConfigureRequest:
case Expose:
case MapRequest:
handler[ev.type](&ev);
break;
case MotionNotify:
if ((ev.xmotion.time - lasttime) <= (1000 / 60))
continue;
lasttime = ev.xmotion.time;
nx = ocx + (ev.xmotion.x - x);
ny = ocy + (ev.xmotion.y - y);
if (abs(selmon->wx - nx) < snap)
nx = selmon->wx;
else if (abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
nx = selmon->wx + selmon->ww - WIDTH(c);
if (abs(selmon->wy - ny) < snap)
ny = selmon->wy;
else if (abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
ny = selmon->wy + selmon->wh - HEIGHT(c);
if (!c->isfloating && selmon->lt[selmon->sellt]->arrange &&
(abs(nx - c->x) > snap || abs(ny - c->y) > snap))
togglefloating(NULL);
if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
resize(c, nx, ny, c->w, c->h, 1);
break;
}
} while (ev.type != ButtonRelease);
XUngrabPointer(dpy, CurrentTime);
if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
sendmon(c, m);
selmon = m;
focus(NULL);
}
}
Client *nexttiled(Client *c) {
for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next)
;
return c;
}
void pop(Client *c) {
detach(c);
attach(c);
focus(c);
arrange(c->mon);
}
void propertynotify(XEvent *e) {
Client *c;
Window trans;
XPropertyEvent *ev = &e->xproperty;
if ((ev->window == root) && (ev->atom == XA_WM_NAME))
updatestatus();
else if (ev->state == PropertyDelete)
return; /* ignore */
else if ((c = wintoclient(ev->window))) {
switch (ev->atom) {
default:
break;
case XA_WM_TRANSIENT_FOR:
if (!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) &&
(c->isfloating = (wintoclient(trans)) != NULL))
arrange(c->mon);
break;
case XA_WM_NORMAL_HINTS:
c->hintsvalid = 0;
break;
case XA_WM_HINTS:
updatewmhints(c);
drawbars();
break;
}
if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
updatetitle(c);
if (c == c->mon->sel)
drawbar(c->mon);
}
if (ev->atom == netatom[NetWMWindowType])
updatewindowtype(c);
}
}
void pushstack(const Arg *arg) {
int i = stackpos(arg);
Client *sel = selmon->sel, *c, *p;
if (i < 0)
return;
else if (i == 0) {
detach(sel);
attach(sel);
} else {
for (p = NULL, c = selmon->clients; c; p = c, c = c->next)
if (!(i -= (ISVISIBLE(c) && c != sel)))
break;
c = c ? c : p;
detach(sel);
sel->next = c->next;
c->next = sel;
}
arrange(selmon);
}
int stackpos(const Arg *arg) {
int n, i;
Client *c, *l;
if (!selmon->clients)
return -1;
if (arg->i == PREVSEL) {
for (l = selmon->stack; l && (!ISVISIBLE(l) || l == selmon->sel);
l = l->snext)
;
if (!l)
return -1;
for (i = 0, c = selmon->clients; c != l;
i += ISVISIBLE(c) ? 1 : 0, c = c->next)
;
return i;
} else if (ISINC(arg->i)) {
if (!selmon->sel)
return -1;
for (i = 0, c = selmon->clients; c != selmon->sel;
i += ISVISIBLE(c) ? 1 : 0, c = c->next)
;
for (n = i; c; n += ISVISIBLE(c) ? 1 : 0, c = c->next)
;
return MOD(i + GETINC(arg->i), n);
} else if (arg->i < 0) {
for (i = 0, c = selmon->clients; c; i += ISVISIBLE(c) ? 1 : 0, c = c->next)
;
return MAX(i + arg->i, 0);
} else
return arg->i;
}
void quit(const Arg *arg) { running = 0; }
Monitor *recttomon(int x, int y, int w, int h) {
Monitor *m, *r = selmon;
int a, area = 0;
for (m = mons; m; m = m->next)
if ((a = INTERSECT(x, y, w, h, m)) > area) {
area = a;
r = m;
}
return r;
}
void resize(Client *c, int x, int y, int w, int h, int interact) {
if (applysizehints(c, &x, &y, &w, &h, interact))
resizeclient(c, x, y, w, h);
}
void resizeclient(Client *c, int x, int y, int w, int h) {
XWindowChanges wc;
c->oldx = c->x;
c->x = wc.x = x;
c->oldy = c->y;
c->y = wc.y = y;
c->oldw = c->w;
c->w = wc.width = w;
c->oldh = c->h;
c->h = wc.height = h;
wc.border_width = c->bw;
XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth,
&wc);