/* 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 <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/Xproto.h>
#include <X11/Xresource.h>
#include <X11/Xutil.h>
#include <X11/cursorfont.h>
#include <X11/keysym.h>
#include <errno.h>
#include <locale.h>
#include <signal.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#ifdef XINERAMA
#include <X11/extensions/Xinerama.h>
#endif /* XINERAMA */
#include <X11/Xft/Xft.h>
#include <X11/Xlib-xcb.h>
#include <xcb/res.h>
#ifdef __OpenBSD__
#include <kvm.h>
#include <sys/sysctl.h>
#endif /* __OpenBSD */
#include "drw.h"
#include "util.h"
/* macros */
#define BUTTONMASK (ButtonPressMask | ButtonReleaseMask)
#define CLEANMASK(mask) \
(mask & ~(numlockmask | LockMask) & \
(ShiftMask | ControlMask | Mod1Mask | Mod2Mask | Mod3Mask | Mod4Mask | Mod5Mask))
#define GETINC(X) ((X)-2000)
#define INC(X) ((X) + 2000)
#define INTERSECT(x, y, w, h, m) \
(MAX(0, MIN((x) + (w), (m)->wx + (m)->ww) - MAX((x), (m)->wx)) * \
MAX(0, MIN((y) + (h), (m)->wy + (m)->wh) - MAX((y), (m)->wy)))
#define ISINC(X) ((X) > 1000 && (X) < 3000)
#define ISVISIBLEONTAG(C, T) ((C->tags & T))
#define ISVISIBLE(C) ISVISIBLEONTAG(C, C->mon->tagset[C->mon->seltags])
#define PREVSEL 3000
#define LENGTH(X) (sizeof X / sizeof X[0])
#define MOD(N, M) ((N) % (M) < 0 ? (N) % (M) + (M) : (N) % (M))
#define MOUSEMASK (BUTTONMASK | PointerMotionMask)
#define WIDTH(X) ((X)->w + 2 * (X)->bw)
#define HEIGHT(X) ((X)->h + 2 * (X)->bw)
#define TAGMASK ((1 << LENGTH(tags)) - 1)
#define TEXTW(X) (drw_fontset_getwidth(drw, (X)) + lrpad)
#define TRUNC(X, A, B) (MAX((A), MIN((X), (B))))
#define SYSTEM_TRAY_REQUEST_DOCK 0
/* XEMBED messages */
#define XEMBED_EMBEDDED_NOTIFY 0
#define XEMBED_WINDOW_ACTIVATE 1
#define XEMBED_FOCUS_IN 4
#define XEMBED_MODALITY_ON 10
#define XEMBED_MAPPED (1 << 0)
#define XEMBED_WINDOW_ACTIVATE 1
#define XEMBED_WINDOW_DEACTIVATE 2
#define VERSION_MAJOR 0
#define VERSION_MINOR 0
#define XEMBED_EMBEDDED_VERSION (VERSION_MAJOR << 16) | VERSION_MINOR
/* enums */
enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
enum {
SchemeNorm,
SchemeSel,
SchemeStatus,
SchemeTagsSel,
SchemeTagsNorm,
SchemeInfoSel,
SchemeInfoNorm
}; /* color schemes */
enum {
NetSupported,
NetWMName,
NetWMState,
NetWMCheck,
NetSystemTray,
NetSystemTrayOP,
NetSystemTrayOrientation,
NetSystemTrayOrientationHorz,
NetWMFullscreen,
NetActiveWindow,
NetWMWindowType,
NetWMWindowTypeDialog,
NetClientList,
NetLast
}; /* EWMH atoms */
enum { Manager, Xembed, XembedInfo, XLast }; /* Xembed atoms */
enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
enum {
ClkTagBar,
ClkLtSymbol,
ClkStatusText,
ClkWinTitle,
ClkClientWin,
ClkRootWin,
ClkLast
}; /* clicks */
typedef union {
int i;
unsigned int ui;
float f;
const void *v;
} Arg;
typedef struct {
unsigned int click;
unsigned int mask;
unsigned int button;
void (*func)(const Arg *arg);
const Arg arg;
} Button;
typedef struct Monitor Monitor;
typedef struct Client Client;
struct Client {
char name[256];
float mina, maxa;
int x, y, w, h;
int oldx, oldy, oldw, oldh;
int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid;
int bw, oldbw;
unsigned int tags;
int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen, isterminal, noswallow;
int floatborderpx, hasfloatbw;
char scratchkey;
pid_t pid;
Client *next;
Client *snext;
Client *swallowing;
Monitor *mon;
Window win;
};
typedef struct {
unsigned int mod;
KeySym keysym;
void (*func)(const Arg *);
const Arg arg;
} Key;
typedef struct {
const char *symbol;
void (*arrange)(Monitor *);
} Layout;
typedef struct Pertag Pertag;
struct Monitor {
char ltsymbol[16];
float mfact;
int nmaster;
int num;
int by; /* bar geometry */
int mx, my, mw, mh; /* screen size */
int wx, wy, ww, wh; /* window area */
unsigned int seltags;
unsigned int sellt;
unsigned int tagset[2];
int showbar;
int topbar;
Client *clients;
Client *sel;
Client *stack;
Monitor *next;
Window barwin;
const Layout *lt[2];
Pertag *pertag;
};
typedef struct {
const char *class;
const char *instance;
const char *title;
const char scratchkey;
unsigned int tags;
int isfloating;
int isterminal;
int noswallow;
float floatx, floaty, floatw, floath;
int floatborderpx;
// int monitor;
} Rule;
typedef struct Systray Systray;
struct Systray {
Window win;
Client *icons;
};
/* Xresources preferences */
enum resource_type { STRING = 0, INTEGER = 1, FLOAT = 2 };
typedef struct {
char *name;
enum resource_type type;
void *dst;
} ResourcePref;
/* function declarations */
static void applyrules(Client *c);
static void applyfloatrules(Client *c, const Rule *r);
static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact);
static void arrange(Monitor *m);
static void arrangemon(Monitor *m);
static void attach(Client *c);
static void attachtop(Client *c);
static void attachstack(Client *c);
static void bstack(Monitor *m);
static void bstackhoriz(Monitor *m);
static void buttonpress(XEvent *e);
static void centeredmaster(Monitor *m);
static void centeredfloatingmaster(Monitor *m);
static void checkotherwm(void);
static void cleanup(void);
static void cleanupmon(Monitor *mon);
static void clientmessage(XEvent *e);
static void configure(Client *c);
static void configurenotify(XEvent *e);
static void configurerequest(XEvent *e);
static Monitor *createmon(void);
static void destroynotify(XEvent *e);
static void detach(Client *c);
static void detachstack(Client *c);
static Monitor *dirtomon(int dir);
static void drawbar(Monitor *m);
static void drawbars(void);
static void enternotify(XEvent *e);
static void expose(XEvent *e);
static void focus(Client *c);
static void focusin(XEvent *e);
static void focusmon(const Arg *arg);
static void focusstack(const Arg *arg);
static void gaplessgrid(Monitor *m);
static Atom getatomprop(Client *c, Atom prop);
static int getrootptr(int *x, int *y);
static long getstate(Window w);
static unsigned int getsystraywidth(void);
static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
static void grabbuttons(Client *c, int focused);
static void grabkeys(void);
static void incnmaster(const Arg *arg);
static void keypress(XEvent *e);
static void killclient(const Arg *arg);
static void manage(Window w, XWindowAttributes *wa);
static void mappingnotify(XEvent *e);
static void maprequest(XEvent *e);
static void monocle(Monitor *m);
static int matchrules(Client *c);
static void motionnotify(XEvent *e);
static void movemouse(const Arg *arg);
static Client *nexttiled(Client *c);
static void pop(Client *c);
static void propertynotify(XEvent *e);
static void pushstack(const Arg *arg);
static void quit(const Arg *arg);
static Monitor *recttomon(int x, int y, int w, int h);
static void removesystrayicon(Client *i);
static void resetnmaster(const Arg *arg);
static void resize(Client *c, int x, int y, int w, int h, int interact);
static void resizebarwin(Monitor *m);
static void resizeclient(Client *c, int x, int y, int w, int h);
static void resizemouse(const Arg *arg);
static void resizerequest(XEvent *e);
static void restack(Monitor *m);
static void run(void);
static void scan(void);
static int sendevent(Window w, Atom proto, int m, long d0, long d1, long d2, long d3, long d4);
static void sendmon(Client *c, Monitor *m);
static void setclientstate(Client *c, long state);
static void setfocus(Client *c);
static void setfullscreen(Client *c, int fullscreen);
static void setlayout(const Arg *arg);
static void setmfact(const Arg *arg);
static void setup(void);
static void seturgent(Client *c, int urg);
static void showhide(Client *c);
static void sighup(int unused);
static void sigterm(int unused);
static void spawn(const Arg *arg);
static void spawnscratch(const Arg *arg);
static Monitor *systraytomon(Monitor *m);
static int stackpos(const Arg *arg);
static void tag(const Arg *arg);
static void tagmon(const Arg *arg);
static void tile(Monitor *m);
static void togglebar(const Arg *arg);
static void togglefloating(const Arg *arg);
static void togglefullscr(const Arg *arg);
static void togglescratch(const Arg *arg);
static void toggletag(const Arg *arg);
static void toggleview(const Arg *arg);
static void unfocus(Client *c, int setfocus);
static void unmanage(Client *c, int destroyed);
static void unmapnotify(XEvent *e);
static void updatebarpos(Monitor *m);
static void updatebars(void);
static void updateclientlist(void);
static int updategeom(void);
static void updatenumlockmask(void);
static void updatesizehints(Client *c);
static void updatestatus(void);
static void updatesystray(void);
static void updatesystrayicongeom(Client *i, int w, int h);
static void updatesystrayiconstate(Client *i, XPropertyEvent *ev);
static void updatetitle(Client *c);
static void updatewindowtype(Client *c);
static void updatewmhints(Client *c);
static void view(const Arg *arg);
static Client *wintoclient(Window w);
static Monitor *wintomon(Window w);
static Client *wintosystrayicon(Window w);
static int xerror(Display *dpy, XErrorEvent *ee);
static int xerrordummy(Display *dpy, XErrorEvent *ee);
static int xerrorstart(Display *dpy, XErrorEvent *ee);
static void zoom(const Arg *arg);
static void load_xresources(void);
static void resource_load(XrmDatabase db, char *name, enum resource_type rtype, void *dst);
static pid_t getparentprocess(pid_t p);
static int isdescprocess(pid_t p, pid_t c);
static Client *swallowingclient(Window w);
static Client *termforwin(const Client *c);
static pid_t winpid(Window w);
/* variables */
static Systray *systray = NULL;
static const char broken[] = "broken";
static char stext[512];
static int screen;
static int sw, sh; /* X display screen geometry width, height */
static int bh; /* bar height */
static int lrpad; /* sum of left and right padding for text */
static int (*xerrorxlib)(Display *, XErrorEvent *);
static unsigned int numlockmask = 0;
static void (*handler[LASTEvent])(XEvent *) = {[ButtonPress] = buttonpress,
[ClientMessage] = clientmessage,
[ConfigureRequest] = configurerequest,
[ConfigureNotify] = configurenotify,
[DestroyNotify] = destroynotify,
[EnterNotify] = enternotify,
[Expose] = expose,
[FocusIn] = focusin,
[KeyPress] = keypress,
[MappingNotify] = mappingnotify,
[MapRequest] = maprequest,
[ResizeRequest] = resizerequest,
[MotionNotify] = motionnotify,
[PropertyNotify] = propertynotify,
[UnmapNotify] = unmapnotify};
static Atom wmatom[WMLast], netatom[NetLast], xatom[XLast];
static int restart = 0;
static int running = 1;
static Cur *cursor[CurLast];
static Clr **scheme;
static Clr *barclrs;
static Display *dpy;
static Drw *drw;
static Monitor *mons, *selmon;
static Window root, wmcheckwin;
static xcb_connection_t *xcon;
/* configuration, allows nested code to access above variables */
#include "config.h"
struct Pertag {
unsigned int curtag, prevtag; /* current and previous tag */
int nmasters[LENGTH(tags) + 1]; /* number of windows in master area */
float mfacts[LENGTH(tags) + 1]; /* mfacts per tag */
unsigned int sellts[LENGTH(tags) + 1]; /* selected layouts */
const Layout *ltidxs[LENGTH(tags) + 1][2]; /* matrix of tags and layouts indexes */
int showbars[LENGTH(tags) + 1]; /* display bar for the current tag */
};
static char *colors[] = {
color0, color1, color2, color3, color4, color5, color6, color7,
color8, color9, color10, color11, color12, color13, color14, color15,
};
/* compile-time check if all tags fit into an unsigned int bit array. */
struct NumTags {
char limitexceeded[LENGTH(tags) > 31 ? -1 : 1];
};
/* function implementations */
void applyrules(Client *c) {
unsigned int i = -1;
const Rule *r;
// Monitor *m;
c->isfloating = 0;
c->tags = 0;
c->scratchkey = 0;
i = matchrules(c);
if (i >= 0) {
r = &rules[i];
c->isterminal = r->isterminal;
c->noswallow = r->noswallow;
c->isfloating = r->isfloating;
c->tags |= r->tags;
c->scratchkey = r->scratchkey;
if (r->floatborderpx >= 0) {
c->floatborderpx = r->floatborderpx;
c->hasfloatbw = 1;
}
if (r->isfloating) {
applyfloatrules(c, r);
}
}
c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
}
void applyfloatrules(Client *c, const Rule *r) {
if (r->floatw > 1)
c->w = r->floatw;
else if (r->floatw > 0)
c->w = (int)((float)c->mon->ww * r->floatw);
c->w = MIN(c->w, c->mon->ww) - c->bw * 2;
if (r->floath > 1)
c->h = r->floath;
else if (r->floath > 0)
c->h = (int)((float)c->mon->wh * r->floath);
c->h = MIN(c->h, c->mon->wh) - c->bw * 2;
if (r->floatx > 1)
c->x = r->floatx;
else if (r->floatx > 0)
c->x = (int)((float)c->mon->ww * r->floatx - (float)WIDTH(c) / 2);
else if (r->floatx == 0)
;
else if (r->floatx > -1)
c->x = c->mon->ww + (int)((float)c->mon->ww * r->floatx - (float)WIDTH(c) / 2);
else
c->x = c->mon->ww + r->floatx - WIDTH(c);
if (c->x + WIDTH(c) > c->mon->wx + c->mon->ww)
c->x = c->mon->ww - WIDTH(c);
c->x = MAX(c->x + c->mon->wx, c->mon->wx);
if (r->floaty > 1)
c->y = r->floaty;
else if (r->floaty > 0)
c->y = (int)((float)c->mon->wh * r->floaty - (float)HEIGHT(c) / 2);
else if (r->floaty == 0)
;
else if (r->floaty > -1)
c->y = c->mon->wh + (int)((float)c->mon->wh * r->floaty - (float)HEIGHT(c) / 2);
else
c->y = c->mon->wh + r->floaty - HEIGHT(c);
if (c->y + HEIGHT(c) > c->mon->wy + c->mon->wh)
c->y = c->mon->wh - HEIGHT(c);
c->y = MAX(c->y + c->mon->wy, c->mon->wy);
}
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 attachtop(Client *c) {
int n;
Monitor *m = selmon;
Client *below;
for (n = 1, below = c->mon->clients;
below && below->next &&
(below->isfloating || !ISVISIBLEONTAG(below, c->tags) || n != m->nmaster);
n = below->isfloating || !ISVISIBLEONTAG(below, c->tags) ? n + 0 : n + 1,
below = below->next)
;
c->next = NULL;
if (below) {
c->next = below->next;
below->next = c;
} else
c->mon->clients = c;
}
void attachstack(Client *c) {
c->snext = c->mon->stack;
c->mon->stack = c;
}
void swallow(Client *p, Client *c) {
if (c->noswallow || c->isterminal)
return;
if (c->noswallow && !swallowfloating && c->isfloating)
return;
detach(c);
detachstack(c);
setclientstate(c, WithdrawnState);
XUnmapWindow(dpy, p->win);
p->swallowing = c;
c->mon = p->mon;
Window w = p->win;
p->win = c->win;
c->win = w;
updatetitle(p);
XMoveResizeWindow(dpy, p->win, p->x, p->y, p->w, p->h);
arrange(p->mon);
configure(p);
updateclientlist();
}
void unswallow(Client *c) {
c->win = c->swallowing->win;
free(c->swallowing);
c->swallowing = NULL;
/* unfullscreen the client */
setfullscreen(c, 0);
updatetitle(c);
arrange(c->mon);
XMapWindow(dpy, c->win);
XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
setclientstate(c, NormalState);
focus(NULL);
arrange(c->mon);
}
static void bstack(Monitor *m) {
int w, h, mh, mx, tx, ty, tw;
unsigned int i, n;
Client *c;
for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++)
;
if (n == 0)
return;
if (n > m->nmaster) {
mh = m->nmaster ? m->mfact * m->wh : 0;
tw = m->ww / (n - m->nmaster);
ty = m->wy + mh;
} else {
mh = m->wh;
tw = m->ww;
ty = m->wy;
}
for (i = mx = 0, tx = m->wx, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
if (i < m->nmaster) {
w = (m->ww - mx) / (MIN(n, m->nmaster) - i);
resize(c, m->wx + mx, m->wy, w - (2 * c->bw), mh - (2 * c->bw), 0);
mx += WIDTH(c);
} else {
h = m->wh - mh;
resize(c, tx, ty, tw - (2 * c->bw), h - (2 * c->bw), 0);
if (tw != m->ww)
tx += WIDTH(c);
}
}
}
static void bstackhoriz(Monitor *m) {
int w, mh, mx, tx, ty, th;
unsigned int i, n;
Client *c;
for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++)
;
if (n == 0)
return;
if (n > m->nmaster) {
mh = m->nmaster ? m->mfact * m->wh : 0;
th = (m->wh - mh) / (n - m->nmaster);
ty = m->wy + mh;
} else {
th = mh = m->wh;
ty = m->wy;
}
for (i = mx = 0, tx = m->wx, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
if (i < m->nmaster) {
w = (m->ww - mx) / (MIN(n, m->nmaster) - i);
resize(c, m->wx + mx, m->wy, w - (2 * c->bw), mh - (2 * c->bw), 0);
mx += WIDTH(c);
} else {
resize(c, tx, ty, m->ww - (2 * c->bw), th - (2 * c->bw), 0);
if (th != m->wh)
ty += HEIGHT(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) {
unfocus(selmon->sel, 1);
selmon = m;
focus(NULL);
}
if (ev->window == selmon->barwin) {
i = x = 0;
unsigned int occ = 0;
for (c = m->clients; c; c = c->next)
occ |= c->tags;
do {
/* Do not reserve space for vacant tags */
if (!(occ & 1 << i || m->tagset[m->seltags] & 1 << i))
continue;
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 if (ev->x > selmon->ww - (int)TEXTW(stext) - getsystraywidth())
click = ClkStatusText;
else
click = ClkWinTitle;
} else if ((c = wintoclient(ev->window))) {
focus(c);
restack(selmon);
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 centeredmaster(Monitor *m) {
unsigned int i, n, h, mw, mx, my, oty, ety, tw;
Client *c;
/* count number of clients in the selected monitor */
for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++)
;
if (n == 0)
return;
/* initialize areas */
mw = m->ww;
mx = 0;
my = 0;
tw = mw;
if (n > m->nmaster) {
/* go mfact box in the center if more than nmaster clients */
mw = m->nmaster ? m->ww * m->mfact : 0;
tw = m->ww - mw;
if (n - m->nmaster > 1) {
/* only one client */
mx = (m->ww - mw) / 2;
tw = (m->ww - mw) / 2;
}
}
oty = 0;
ety = 0;
for (i = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
if (i < m->nmaster) {
/* nmaster clients are stacked vertically, in the center
* of the screen */
h = (m->wh - my) / (MIN(n, m->nmaster) - i);
resize(c, m->wx + mx, m->wy + my, mw - (2 * c->bw), h - (2 * c->bw), 0);
my += HEIGHT(c);
} else {
/* stack clients are stacked vertically */
if ((i - m->nmaster) % 2) {
h = (m->wh - ety) / ((1 + n - i) / 2);
resize(c, m->wx, m->wy + ety, tw - (2 * c->bw), h - (2 * c->bw), 0);
ety += HEIGHT(c);
} else {
h = (m->wh - oty) / ((1 + n - i) / 2);
resize(c, m->wx + mx + mw, m->wy + oty, tw - (2 * c->bw), h - (2 * c->bw), 0);
oty += HEIGHT(c);
}
}
}
void centeredfloatingmaster(Monitor *m) {
unsigned int i, n, w, mh, mw, mx, mxo, my, myo, tx;
Client *c;
/* count number of clients in the selected monitor */
for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++)
;
if (n == 0)
return;
/* initialize nmaster area */
if (n > m->nmaster) {
/* go mfact box in the center if more than nmaster clients */
if (m->ww > m->wh) {
mw = m->nmaster ? m->ww * m->mfact : 0;
mh = m->nmaster ? m->wh * 0.9 : 0;
} else {
mh = m->nmaster ? m->wh * m->mfact : 0;
mw = m->nmaster ? m->ww * 0.9 : 0;
}
mx = mxo = (m->ww - mw) / 2;
my = myo = (m->wh - mh) / 2;
} else {
/* go fullscreen if all clients are in the master area */
mh = m->wh;
mw = m->ww;
mx = mxo = 0;
my = myo = 0;
}
for (i = tx = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
if (i < m->nmaster) {
/* nmaster clients are stacked horizontally, in the center
* of the screen */
w = (mw + mxo - mx) / (MIN(n, m->nmaster) - i);
resize(c, m->wx + mx, m->wy + my, w - (2 * c->bw), mh - (2 * c->bw), 0);
mx += WIDTH(c);
} else {
/* stack clients are stacked horizontally */
w = (m->ww - tx) / (n - i);
resize(c, m->wx + tx, m->wy, w - (2 * c->bw), m->wh - (2 * c->bw), 0);
tx += WIDTH(c);
}
}
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);
if (showsystray) {
XUnmapWindow(dpy, systray->win);
XDestroyWindow(dpy, systray->win);
free(systray);
}
for (i = 0; i < CurLast; i++)
drw_cur_free(drw, cursor[i]);
for (i = 0; i < LENGTH(colors); 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) {
XWindowAttributes wa;
XSetWindowAttributes swa;
XClientMessageEvent *cme = &e->xclient;
Client *c = wintoclient(cme->window);
if (showsystray && cme->window == systray->win &&
cme->message_type == netatom[NetSystemTrayOP]) {
/* add systray icons */
if (cme->data.l[1] == SYSTEM_TRAY_REQUEST_DOCK) {
if (!(c = (Client *)calloc(1, sizeof(Client))))
die("fatal: could not malloc() %u bytes\n", sizeof(Client));
if (!(c->win = cme->data.l[2])) {
free(c);
return;
}
c->mon = selmon;
c->next = systray->icons;
systray->icons = c;
if (!XGetWindowAttributes(dpy, c->win, &wa)) {
/* use sane defaults */
wa.width = bh;
wa.height = bh;
wa.border_width = 0;
}
c->x = c->oldx = c->y = c->oldy = 0;
c->w = c->oldw = wa.width;
c->h = c->oldh = wa.height;
c->oldbw = wa.border_width;
c->bw = 0;
c->isfloating = True;
/* reuse tags field as mapped status */
c->tags = 1;
updatesizehints(c);
updatesystrayicongeom(c, wa.width, wa.height);
XAddToSaveSet(dpy, c->win);
XSelectInput(dpy, c->win,
StructureNotifyMask | PropertyChangeMask | ResizeRedirectMask);
XReparentWindow(dpy, c->win, systray->win, 0, 0);
/* use parents background color */
swa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
XChangeWindowAttributes(dpy, c->win, CWBackPixel, &swa);
sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime,
XEMBED_EMBEDDED_NOTIFY, 0, systray->win, XEMBED_EMBEDDED_VERSION);
/* FIXME not sure if I have to send these events, too */
sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_FOCUS_IN, 0,
systray->win, XEMBED_EMBEDDED_VERSION);
sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime,
XEMBED_WINDOW_ACTIVATE, 0, systray->win, XEMBED_EMBEDDED_VERSION);
sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_MODALITY_ON,
0, systray->win, XEMBED_EMBEDDED_VERSION);
XSync(dpy, False);
resizebarwin(selmon);
updatesystray();
setclientstate(c, NormalState);
}
return;
}
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);
resizebarwin(m);
}
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;
unsigned int i;
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->lt[0] = &layouts[0];
m->lt[1] = &layouts[1 % LENGTH(layouts)];
strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
m->pertag = ecalloc(1, sizeof(Pertag));
m->pertag->curtag = m->pertag->prevtag = 1;
for (i = 0; i <= LENGTH(tags); i++) {
m->pertag->nmasters[i] = m->nmaster;
m->pertag->mfacts[i] = m->mfact;
m->pertag->ltidxs[i][0] = m->lt[0];
m->pertag->ltidxs[i][1] = m->lt[1];
m->pertag->sellts[i] = m->sellt;
m->pertag->showbars[i] = m->showbar;
}
return m;
}
void destroynotify(XEvent *e) {
Client *c;
XDestroyWindowEvent *ev = &e->xdestroywindow;
if ((c = wintoclient(ev->window)))
unmanage(c, 1);
else if ((c = swallowingclient(ev->window)))
unmanage(c->swallowing, 1);
else if ((c = wintosystrayicon(ev->window))) {
removesystrayicon(c);
resizebarwin(selmon);
updatesystray();
}
}
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 resetfntlist(Fnt *orighead, Fnt *curhead) {
if (orighead != curhead) {
Fnt *f;
for (f = orighead; f->next; f = f->next)
;
f->next = curhead;
for (f = f->next; f->next != orighead; f = f->next)
;
f->next = NULL;
}
}
enum SgrFlags { REVERSE = 1 << 0, UNDERLINE = 1 << 1, STRIKETHROUGH = 1 << 2, OVERLINE = 1 << 3 };
void drawbar(Monitor *m) {
int x, w, tw = 0, stw = 0;
int boxs = drw->fonts->h / 9;
int boxw = drw->fonts->h / 6 + 2;
unsigned int i, occ = 0, urg = 0;
Client *c;
if (!m->showbar)
return;
if (showsystray && m == systraytomon(m) && !systrayonleft)
stw = getsystraywidth();
/* draw status first so it can be overdrawn by tags later */
if (m == selmon) { /* status is only drawn on selected monitor */
char buffer[sizeof(stext)];
Clr scm[3];
int wr, rd;
int pw;
int fg = 7;
int bg = 0;
int fmt = 0;
int lp = lrpad / 2 - 2;
Fnt *fset = drw->fonts;
memcpy(scm, scheme[SchemeNorm], sizeof(scm));
drw_setscheme(drw, scm);
/* Handling for font-changing SGR sequences */
for (tw = 0, wr = 0, rd = 0; stext[rd]; rd++) {
if (stext[rd] == '' && stext[rd + 1] == '[') {
size_t alen = strspn(stext + rd + 2, "0123456789;");
if (stext[rd + alen + 2] == 'm') {
buffer[wr] = '\0';
tw += TEXTW(buffer) - lrpad;
wr = 0;
char *ep = stext + rd + 1;
while (*ep != 'm') {
unsigned v = strtoul(ep + 1, &ep, 10);
if (v == 0 || (v >= 10 && v <= 19)) {
int fi = v % 10;
Fnt *f;
Fnt *p;
resetfntlist(fset, drw->fonts);
for (p = NULL, f = fset; f && fi--; p = f, f = f->next)
;
if (f) {
if (p) {
p->next = NULL;
for (p = f; p->next; p = p->next)
;
p->next = fset;
}
drw_setfontset(drw, f);
} else {
drw_setfontset(drw, fset);
}
}
}
rd += alen + 2;
continue;
}
}
buffer[wr++] = stext[rd];
}
buffer[wr] = '\0';
tw += TEXTW(buffer) - lrpad / 2 + 2;
x = m->ww - tw - stw;
resetfntlist(fset, drw->fonts);
drw_setfontset(drw, fset);
/* Handling of other escapes */
for (wr = 0, rd = 0; stext[rd]; rd++) {
if (stext[rd] == '' && stext[rd + 1] == '[') {
size_t alen = strspn(stext + rd + 2, "0123456789;");
if (stext[rd + alen + 2] == 'm') {
buffer[wr] = '\0';
pw = TEXTW(buffer) - lrpad;
drw_text(drw, x, 0, pw + lp, bh, lp, buffer, fmt & REVERSE);
if (fmt & UNDERLINE)
drw_rect(drw, x, (bh + drw->fonts->h) / 2, pw, 1, 1, fmt & REVERSE);
if (fmt & STRIKETHROUGH)
drw_rect(drw, x, bh / 2, pw, 1, 1, fmt & REVERSE);
if (fmt & OVERLINE)
drw_rect(drw, x, (bh - drw->fonts->h) / 2, pw, 1, 1, fmt & REVERSE);
x += pw + lp;
lp = 0;
char *ep = stext + rd + 1;
while (*ep != 'm') {
unsigned v = strtoul(ep + 1, &ep, 10);
if (v == 0) {
memcpy(scm, scheme[SchemeNorm], sizeof(scm));
fg = 7;
bg = 0;
fmt = 0;
resetfntlist(fset, drw->fonts);
drw_setfontset(drw, fset);
} else if (v == 1) {
fg |= 8;
scm[0] = barclrs[fg];
} else if (v == 4) {
fmt |= UNDERLINE;
} else if (v == 7) {
fmt |= REVERSE;
} else if (v == 9) {
fmt |= STRIKETHROUGH;
} else if (v >= 10 && v <= 19) {
int fi = v % 10;
Fnt *f;
Fnt *p;
resetfntlist(fset, drw->fonts);
for (p = NULL, f = fset; f && fi--; p = f, f = f->next)
;
if (f) {
if (p) {
p->next = NULL;
for (p = f; p->next; p = p->next)
;
p->next = fset;
}
drw_setfontset(drw, f);
} else {
drw_setfontset(drw, fset);
}
} else if (v == 22) {
fg &= ~8;
scm[0] = barclrs[fg];
} else if (v == 24) {
fmt &= ~UNDERLINE;
} else if (v == 27) {
fmt &= ~REVERSE;
} else if (v == 29) {
fmt &= ~STRIKETHROUGH;
} else if (v >= 30 && v <= 37) {
fg = v % 10 | (fg & 8);
scm[0] = barclrs[fg];
} else if (v >= 40 && v <= 47) {
bg = v % 10;
scm[1] = barclrs[bg];
} else if (v == 53) {
fmt |= OVERLINE;
} else if (v == 55) {
fmt &= ~OVERLINE;
}
}
rd += alen + 2;
wr = 0;
drw_setscheme(drw, scm);
continue;
}
}
buffer[wr++] = stext[rd];
}
buffer[wr] = '\0';
pw = TEXTW(buffer) - lrpad;
drw_text(drw, x, 0, pw + lp, bh, lp, buffer, fmt & REVERSE);
if (fmt & UNDERLINE)
drw_rect(drw, x, (bh + drw->fonts->h) / 2, pw, 1, 1, fmt & REVERSE);
if (fmt & STRIKETHROUGH)
drw_rect(drw, x, bh / 2, pw, 1, 1, fmt & REVERSE);
if (fmt & OVERLINE)
drw_rect(drw, x, (bh - drw->fonts->h) / 2, pw, 1, 1, fmt & REVERSE);
drw_setscheme(drw, scheme[SchemeStatus]);
}
resizebarwin(m);
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++) {
/* Do not draw vacant tags */
if (!(occ & 1 << i || m->tagset[m->seltags] & 1 << i))
continue;
w = TEXTW(tags[i]);
drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeTagsSel : SchemeTagsNorm]);
drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i);
x += w;
}
w = TEXTW(m->ltsymbol);
drw_setscheme(drw, scheme[SchemeTagsNorm]);
x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
if ((w = m->ww - tw - stw - x) > bh) {
if (m->sel) {
drw_setscheme(drw, scheme[m == selmon ? SchemeInfoSel : SchemeInfoNorm]);
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 - stw, bh);
}
void drawbars(void) {
Monitor *m;
for (m = mons; m; m = m->next)
drawbar(m);
}
void enternotify(XEvent *e) {
Client *c;
Monitor *m;
XCrossingEvent *ev = &e->xcrossing;
if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
return;
c = wintoclient(ev->window);
m = c ? c->mon : wintomon(ev->window);
if (m != selmon) {
unfocus(selmon->sel, 1);
selmon = m;
} else if (!c || c == selmon->sel)
return;
focus(c);
}
void expose(XEvent *e) {
Monitor *m;
XExposeEvent *ev = &e->xexpose;
if (ev->count == 0 && (m = wintomon(ev->window))) {
drawbar(m);
if (m == selmon)
updatesystray();
}
}
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) {
// Client *c = NULL, *i;
int i = stackpos(arg);
Client *c, *p;
if (i < 0 || (selmon->sel->isfullscreen && lockfullscreen))
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);
}
void gaplessgrid(Monitor *m) {
unsigned int n, cols, rows, cn, rn, i, cx, cy, cw, ch;
Client *c;
for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++)
;
if (n == 0)
return;
/* grid dimensions */
for (cols = 0; cols <= n / 2; cols++)
if (cols * cols >= n)
break;
if (n == 5) /* set layout against the general calculation: not 1:2:2, but 2:3 */
cols = 2;
rows = n / cols;
/* window geometries */
cw = cols ? m->ww / cols : m->ww;
cn = 0; /* current column number */
rn = 0; /* current row number */
for (i = 0, c = nexttiled(m->clients); c; i++, c = nexttiled(c->next)) {
if (i / rows + 1 > cols - n % cols)
rows = n / cols + 1;
ch = rows ? m->wh / rows : m->wh;
cx = m->wx + cn * cw;
cy = m->wy + rn * ch;
resize(c, cx, cy, cw - 2 * c->bw, ch - 2 * c->bw, False);
rn++;
if (rn >= rows) {
rn = 0;
cn++;
}
}
}
Atom getatomprop(Client *c, Atom prop) {
int di;
unsigned long dl;
unsigned char *p = NULL;
Atom da, atom = None;
/* FIXME getatomprop should return the number of items and a pointer to
* the stored data instead of this workaround */
Atom req = XA_ATOM;
if (prop == xatom[XembedInfo])
req = xatom[XembedInfo];
if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, req, &da, &di, &dl, &dl,
&p) == Success &&
p) {
atom = *(Atom *)p;
if (da == xatom[XembedInfo] && dl == 2)
atom = ((Atom *)p)[1];
XFree(p);
}
return atom;
}
unsigned int getsystraywidth(void) {
unsigned int w = 0;
Client *i;
if (showsystray)
for (i = systray->icons; i; w += i->w + systrayspacing, i = i->next)
;
return w ? w + systrayspacing : 1;
}
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, k;
unsigned int modifiers[] = {0, LockMask, numlockmask, numlockmask | LockMask};
int start, end, skip;
KeySym *syms;
XUngrabKey(dpy, AnyKey, AnyModifier, root);
XDisplayKeycodes(dpy, &start, &end);
syms = XGetKeyboardMapping(dpy, start, end - start + 1, &skip);
if (!syms)
return;
for (k = start; k <= end; k++)
for (i = 0; i < LENGTH(keys); i++)
/* skip modifier codes, we do that ourselves */
if (keys[i].keysym == syms[(k - start) * skip])
for (j = 0; j < LENGTH(modifiers); j++)
XGrabKey(dpy, k, keys[i].mod | modifiers[j], root, True, GrabModeAsync,
GrabModeAsync);
XFree(syms);
}
}
void incnmaster(const Arg *arg) {
selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag] =
MAX(selmon->nmaster + arg->i, 0);
arrange(selmon);
}
#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->win, wmatom[WMDelete], NoEventMask, wmatom[WMDelete], CurrentTime,
0, 0, 0)) {
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, *term = NULL;
Window trans = None;
XWindowChanges wc;
c = ecalloc(1, sizeof(Client));
c->win = w;
c->pid = winpid(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);
term = termforwin(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);
attachtop(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);
if (term)
swallow(term, c);
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;
Client *i;
if ((i = wintosystrayicon(ev->window))) {
sendevent(i->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_WINDOW_ACTIVATE,
0, systray->win, XEMBED_EMBEDDED_VERSION);
resizebarwin(selmon);
updatesystray();
}
if (!XGetWindowAttributes(dpy, ev->window, &wa) || wa.override_redirect)
return;
if (!wintoclient(ev->window))
manage(ev->window, &wa);
}
int matchrules(Client *c) {
const char *class, *instance;
unsigned int ri;
const Rule *r;
XClassHint ch = {NULL, NULL};
XGetClassHint(dpy, c->win, &ch);
class = ch.res_class ? ch.res_class : broken;
instance = ch.res_name ? ch.res_name : broken;
for (ri = 0; ri < LENGTH(rules); ri++) {
r = &rules[ri];
if ((!r->title || strstr(c->name, r->title)) && (!r->class || strstr(class, r->class)) &&
(!r->instance || strstr(instance, r->instance))) {
if (ch.res_class)
XFree(ch.res_class);
if (ch.res_name)
XFree(ch.res_name);
return ri;
}
}
if (ch.res_class)
XFree(ch.res_class);
if (ch.res_name)
XFree(ch.res_name);
return False;
}
void monocle(Monitor *m) {
unsigned int n = 0;
Client *c;
for (c = m->clients; c; c = c->next)
if (ISVISIBLE(c))
n++;
if (n > 0) /* override layout symbol */
snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
for (c = nexttiled(m->clients); c; c = nexttiled(c->next))
resize(c, m->wx, m->wy, m->ww - 2 * c->bw, m->wh - 2 * c->bw, 0);
}
void motionnotify(XEvent *e) {
static Monitor *mon = NULL;
Monitor *m;
XMotionEvent *ev = &e->xmotion;
if (ev->window != root)
return;
if ((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) {
unfocus(selmon->sel, 1);
selmon = m;
focus(NULL);
}
mon = m;
}
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 ((c = wintosystrayicon(ev->window))) {
if (ev->atom == XA_WM_NORMAL_HINTS) {
updatesizehints(c);
updatesystrayicongeom(c, c->w, c->h);
} else
updatesystrayiconstate(c, ev);
resizebarwin(selmon);
updatesystray();
}
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);
}
void quit(const Arg *arg) {
if (arg->i)
restart = 1;
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 removesystrayicon(Client *i) {
Client **ii;
if (!showsystray || !i)
return;
for (ii = &systray->icons; *ii && *ii != i; ii = &(*ii)->next)
;
if (ii)
*ii = i->next;
free(i);
}
void resetnmaster(const Arg *arg) {
selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag] = 1;
arrange(selmon);
}
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 resizebarwin(Monitor *m) {
unsigned int w = m->ww;
if (showsystray && m == systraytomon(m) && !systrayonleft)
w -= getsystraywidth();
XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, w, bh);
}
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;
if (c->isfloating && c->hasfloatbw && !c->isfullscreen)
wc.border_width = c->floatborderpx;
else
wc.border_width = c->bw;
XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc);
configure(c);
XSync(dpy, False);
}
void resizemouse(const Arg *arg) {
int ocx, ocy, nw, nh;
int ocx2, ocy2, nx, ny;
Client *c;
Monitor *m;
XEvent ev;
int horizcorner, vertcorner;
int di;
unsigned int dui;
Window dummy;
Time lasttime = 0;
if (!(c = selmon->sel))
return;
if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */
return;
restack(selmon);
ocx = c->x;
ocy = c->y;
ocx2 = c->x + c->w;
ocy2 = c->y + c->h;
if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, None,
cursor[CurResize]->cursor, CurrentTime) != GrabSuccess)
return;
if (!XQueryPointer(dpy, c->win, &dummy, &dummy, &di, &di, &nx, &ny, &dui))
return;
horizcorner = nx < c->w / 2;
vertcorner = ny < c->h / 2;
XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, horizcorner ? (-c->bw) : (c->w + c->bw - 1),
vertcorner ? (-c->bw) : (c->h + c->bw - 1));
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 = horizcorner ? ev.xmotion.x : c->x;
ny = vertcorner ? ev.xmotion.y : c->y;
nw = MAX(horizcorner ? (ocx2 - nx) : (ev.xmotion.x - ocx - 2 * c->bw + 1), 1);
nh = MAX(vertcorner ? (ocy2 - ny) : (ev.xmotion.y - ocy - 2 * c->bw + 1), 1);
if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww &&
c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh) {
if (!c->isfloating && selmon->lt[selmon->sellt]->arrange &&
(abs(nw - c->w) > snap || abs(nh - c->h) > snap))
togglefloating(NULL);
}
if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
resize(c, nx, ny, nw, nh, 1);
break;
}
} while (ev.type != ButtonRelease);
XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, horizcorner ? (-c->bw) : (c->w + c->bw - 1),
vertcorner ? (-c->bw) : (c->h + c->bw - 1));
XUngrabPointer(dpy, CurrentTime);
while (XCheckMaskEvent(dpy, EnterWindowMask, &ev))
;
if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
sendmon(c, m);
selmon = m;
focus(NULL);
}
}
void resizerequest(XEvent *e) {
XResizeRequestEvent *ev = &e->xresizerequest;
Client *i;
if ((i = wintosystrayicon(ev->window))) {
updatesystrayicongeom(i, ev->width, ev->height);
resizebarwin(selmon);
updatesystray();
}
}
void restack(Monitor *m) {
Client *c;
XEvent ev;
XWindowChanges wc;
drawbar(m);
if (!m->sel)
return;
if (m->sel->isfloating || !m->lt[m->sellt]->arrange)
XRaiseWindow(dpy, m->sel->win);
if (m->lt[m->sellt]->arrange) {
wc.stack_mode = Below;
wc.sibling = m->barwin;
for (c = m->stack; c; c = c->snext)
if (!c->isfloating && ISVISIBLE(c)) {
XConfigureWindow(dpy, c->win, CWSibling | CWStackMode, &wc);
wc.sibling = c->win;
}
}
XSync(dpy, False);
while (XCheckMaskEvent(dpy, EnterWindowMask, &ev))
;
}
void run(void) {
XEvent ev;
/* main event loop */
XSync(dpy, False);
while (running && !XNextEvent(dpy, &ev))
if (handler[ev.type])
handler[ev.type](&ev); /* call handler */
}
void scan(void) {
unsigned int i, num;
Window d1, d2, *wins = NULL;
XWindowAttributes wa;
if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
for (i = 0; i < num; i++) {
if (!XGetWindowAttributes(dpy, wins[i], &wa) || wa.override_redirect ||
XGetTransientForHint(dpy, wins[i], &d1))
continue;
if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
manage(wins[i], &wa);
}
for (i = 0; i < num; i++) { /* now the transients */
if (!XGetWindowAttributes(dpy, wins[i], &wa))
continue;
if (XGetTransientForHint(dpy, wins[i], &d1) &&
(wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
manage(wins[i], &wa);
}
if (wins)
XFree(wins);
}
}
void sendmon(Client *c, Monitor *m) {
if (c->mon == m)
return;
unfocus(c, 1);
detach(c);
detachstack(c);
c->mon = m;
c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
attachtop(c);
attachstack(c);
focus(NULL);
arrange(NULL);
}
void setclientstate(Client *c, long state) {
long data[] = {state, None};
XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32, PropModeReplace,
(unsigned char *)data, 2);
}
int sendevent(Window w, Atom proto, int mask, long d0, long d1, long d2, long d3, long d4) {
int n;
Atom *protocols, mt;
int exists = 0;
XEvent ev;
if (proto == wmatom[WMTakeFocus] || proto == wmatom[WMDelete]) {
mt = wmatom[WMProtocols];
if (XGetWMProtocols(dpy, w, &protocols, &n)) {
while (!exists && n--)
exists = protocols[n] == proto;
XFree(protocols);
}
} else {
exists = True;
mt = proto;
}
if (exists) {
ev.type = ClientMessage;
ev.xclient.window = w;
ev.xclient.message_type = mt;
ev.xclient.format = 32;
ev.xclient.data.l[0] = d0;
ev.xclient.data.l[1] = d1;
ev.xclient.data.l[2] = d2;
ev.xclient.data.l[3] = d3;
ev.xclient.data.l[4] = d4;
XSendEvent(dpy, w, False, mask, &ev);
}
return exists;
}
void setfocus(Client *c) {
if (!c->neverfocus) {
XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
XChangeProperty(dpy, root, netatom[NetActiveWindow], XA_WINDOW, 32, PropModeReplace,
(unsigned char *)&(c->win), 1);
}
sendevent(c->win, wmatom[WMTakeFocus], NoEventMask, wmatom[WMTakeFocus], CurrentTime, 0, 0, 0);
}
void setfullscreen(Client *c, int fullscreen) {
if (fullscreen && !c->isfullscreen) {
XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32, PropModeReplace,
(unsigned char *)&netatom[NetWMFullscreen], 1);
c->isfullscreen = 1;
c->oldstate = c->isfloating;
c->oldbw = c->bw;
c->bw = 0;
c->isfloating = 1;
resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh);
XRaiseWindow(dpy, c->win);
} else if (!fullscreen && c->isfullscreen) {
XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32, PropModeReplace,
(unsigned char *)0, 0);
c->isfullscreen = 0;
c->isfloating = c->oldstate;
c->bw = c->oldbw;
c->x = c->oldx;
c->y = c->oldy;
c->w = c->oldw;
c->h = c->oldh;
resizeclient(c, c->x, c->y, c->w, c->h);
arrange(c->mon);
}
}
void setlayout(const Arg *arg) {
if (!arg || !arg->v || arg->v != selmon->lt[selmon->sellt])
selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag] ^= 1;
if (arg && arg->v)
selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt] =
(Layout *)arg->v;
strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
if (selmon->sel)
arrange(selmon);
else
drawbar(selmon);
}
/* arg > 1.0 will set mfact absolutely */
void setmfact(const Arg *arg) {
float f;
if (!arg || !selmon->lt[selmon->sellt]->arrange)
return;
f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
if (f < 0.05 || f > 0.95)
return;
selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag] = f;
arrange(selmon);
}
void setup(void) {
int i;
XSetWindowAttributes wa;
Atom utf8string;
struct sigaction sa;
/* do not transform children into zombies when they terminate */
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_NOCLDSTOP | SA_NOCLDWAIT | SA_RESTART;
sa.sa_handler = SIG_IGN;
sigaction(SIGCHLD, &sa, NULL);
/* clean up any zombies (inherited from .xinitrc etc) immediately */
while (waitpid(-1, NULL, WNOHANG) > 0)
;
signal(SIGHUP, sighup);
signal(SIGTERM, sigterm);
/* init screen */
screen = DefaultScreen(dpy);
sw = DisplayWidth(dpy, screen);
sh = DisplayHeight(dpy, screen);
root = RootWindow(dpy, screen);
drw = drw_create(dpy, screen, root, sw, sh);
if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
die("no fonts could be loaded.");
lrpad = drw->fonts->h;
bh = drw->fonts->h + 2;
updategeom();
/* init atoms */
utf8string = XInternAtom(dpy, "UTF8_STRING", False);
wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
netatom[NetSystemTray] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_S0", False);
netatom[NetSystemTrayOP] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_OPCODE", False);
netatom[NetSystemTrayOrientation] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION", False);
netatom[NetSystemTrayOrientationHorz] =
XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION_HORZ", False);
netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False);
netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
xatom[Manager] = XInternAtom(dpy, "MANAGER", False);
xatom[Xembed] = XInternAtom(dpy, "_XEMBED", False);
xatom[XembedInfo] = XInternAtom(dpy, "_XEMBED_INFO", False);
/* init cursors */
cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr);
cursor[CurResize] = drw_cur_create(drw, XC_sizing);
cursor[CurMove] = drw_cur_create(drw, XC_fleur);
/* init appearance */
scheme = ecalloc(LENGTH(barschemes), sizeof(Clr *));
for (i = 0; i < LENGTH(barschemes); i++)
scheme[i] = drw_scm_create(drw, barschemes[i], 3);
barclrs = ecalloc(LENGTH(colors), sizeof(Clr));
for (i = 0; i < LENGTH(colors); i++)
drw_clr_create(drw, &barclrs[i], colors[i]);
/* init system tray */
updatesystray();
/* init bars */
updatebars();
updatestatus();
/* supporting window for NetWMCheck */
wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0);
XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32, PropModeReplace,
(unsigned char *)&wmcheckwin, 1);
XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8, PropModeReplace,
(unsigned char *)"dwm", 3);
XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32, PropModeReplace,
(unsigned char *)&wmcheckwin, 1);
/* EWMH support per view */
XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32, PropModeReplace,
(unsigned char *)netatom, NetLast);
XDeleteProperty(dpy, root, netatom[NetClientList]);
/* select events */
wa.cursor = cursor[CurNormal]->cursor;
wa.event_mask = SubstructureRedirectMask | SubstructureNotifyMask | ButtonPressMask |
PointerMotionMask | EnterWindowMask | LeaveWindowMask | StructureNotifyMask |
PropertyChangeMask;
XChangeWindowAttributes(dpy, root, CWEventMask | CWCursor, &wa);
XSelectInput(dpy, root, wa.event_mask);
grabkeys();
focus(NULL);
}
void seturgent(Client *c, int urg) {
XWMHints *wmh;
c->isurgent = urg;
if (!(wmh = XGetWMHints(dpy, c->win)))
return;
wmh->flags = urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint);
XSetWMHints(dpy, c->win, wmh);
XFree(wmh);
}
void showhide(Client *c) {
if (!c)
return;
if (ISVISIBLE(c)) {
/* show clients top down */
XMoveWindow(dpy, c->win, c->x, c->y);
if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen)
resize(c, c->x, c->y, c->w, c->h, 0);
showhide(c->snext);
} else {
/* hide clients bottom up */
showhide(c->snext);
XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y);
}
}
void sighup(int unused) {
Arg a = {.i = 1};
quit(&a);
}
void sigterm(int unused) {
Arg a = {.i = 0};
quit(&a);
}
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 spawnscratch(const Arg *arg) {
if (fork() == 0) {
if (dpy)
close(ConnectionNumber(dpy));
setsid();
execvp(((char **)arg->v)[1], ((char **)arg->v) + 1);
fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[1]);
perror(" failed");
exit(EXIT_SUCCESS);
}
}
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 tag(const Arg *arg) {
if (selmon->sel && arg->ui & TAGMASK) {
selmon->sel->tags = arg->ui & TAGMASK;
focus(NULL);
arrange(selmon);
}
}
void tagmon(const Arg *arg) {
if (!selmon->sel || !mons->next)
return;
sendmon(selmon->sel, dirtomon(arg->i));
}
void tile(Monitor *m) {
unsigned int i, n, h, mw, my, ty;
Client *c;
for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++)
;
if (n == 0)
return;
if (n > m->nmaster)
mw = m->nmaster ? m->ww * m->mfact : 0;
else
mw = m->ww;
for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
if (i < m->nmaster) {
h = (m->wh - my) / (MIN(n, m->nmaster) - i);
resize(c, m->wx, m->wy + my, mw - (2 * c->bw), h - (2 * c->bw), 0);
if (my + HEIGHT(c) < m->wh)
my += HEIGHT(c);
} else {
h = (m->wh - ty) / (n - i);
resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2 * c->bw), h - (2 * c->bw), 0);
if (ty + HEIGHT(c) < m->wh)
ty += HEIGHT(c);
}
}
void togglebar(const Arg *arg) {
selmon->showbar = selmon->pertag->showbars[selmon->pertag->curtag] = !selmon->showbar;
updatebarpos(selmon);
resizebarwin(selmon);
if (showsystray) {
XWindowChanges wc;
if (!selmon->showbar)
wc.y = -bh;
else if (selmon->showbar) {
wc.y = 0;
if (!selmon->topbar)
wc.y = selmon->mh - bh;
}
XConfigureWindow(dpy, systray->win, CWY, &wc);
}
arrange(selmon);
}
void togglefloating(const Arg *arg) {
if (!selmon->sel)
return;
if (selmon->sel->isfullscreen) /* no support for fullscreen windows */
return;
selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
if (selmon->sel->isfloating)
resize(selmon->sel, selmon->sel->x, selmon->sel->y, selmon->sel->w, selmon->sel->h, 0);
arrange(selmon);
}
void togglefullscr(const Arg *arg) {
if (selmon->sel)
setfullscreen(selmon->sel, !selmon->sel->isfullscreen);
}
void togglescratch(const Arg *arg) {
Client *c;
unsigned int found = 0;
for (c = selmon->clients; c && !(found = c->scratchkey == ((char **)arg->v)[0][0]); c = c->next)
;
if (found) {
c->tags = ISVISIBLE(c) ? 0 : selmon->tagset[selmon->seltags];
focus(NULL);
arrange(selmon);
if (ISVISIBLE(c)) {
focus(c);
restack(selmon);
}
} else {
spawnscratch(arg);
}
}
void toggletag(const Arg *arg) {
unsigned int newtags;
if (!selmon->sel)
return;
newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
if (newtags) {
selmon->sel->tags = newtags;
focus(NULL);
arrange(selmon);
}
}
void toggleview(const Arg *arg) {
unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
int i;
if (newtagset) {
selmon->tagset[selmon->seltags] = newtagset;
if (newtagset == ~0) {
selmon->pertag->prevtag = selmon->pertag->curtag;
selmon->pertag->curtag = 0;
}
/* test if the user did not select the same tag */
if (!(newtagset & 1 << (selmon->pertag->curtag - 1))) {
selmon->pertag->prevtag = selmon->pertag->curtag;
for (i = 0; !(newtagset & 1 << i); i++)
;
selmon->pertag->curtag = i + 1;
}
/* apply settings for this view */
selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag];
selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag];
selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag];
selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt];
selmon->lt[selmon->sellt ^ 1] =
selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt ^ 1];
if (selmon->showbar != selmon->pertag->showbars[selmon->pertag->curtag])
togglebar(NULL);
focus(NULL);
arrange(selmon);
}
}
void unfocus(Client *c, int setfocus) {
if (!c)
return;
grabbuttons(c, 0);
XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel);
if (setfocus) {
XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
}
}
void unmanage(Client *c, int destroyed) {
Monitor *m = c->mon;
XWindowChanges wc;
if (c->swallowing) {
unswallow(c);
return;
}
Client *s = swallowingclient(c->win);
if (s) {
free(s->swallowing);
s->swallowing = NULL;
arrange(m);
focus(NULL);
return;
}
detach(c);
detachstack(c);
if (!destroyed) {
wc.border_width = c->oldbw;
XGrabServer(dpy); /* avoid race conditions */
XSetErrorHandler(xerrordummy);
XSelectInput(dpy, c->win, NoEventMask);
XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
setclientstate(c, WithdrawnState);
XSync(dpy, False);
XSetErrorHandler(xerror);
XUngrabServer(dpy);
}
free(c);
if (!s) {
arrange(m);
focus(NULL);
updateclientlist();
}
}
void unmapnotify(XEvent *e) {
Client *c;
XUnmapEvent *ev = &e->xunmap;
if ((c = wintoclient(ev->window))) {
if (ev->send_event)
setclientstate(c, WithdrawnState);
else
unmanage(c, 0);
} else if ((c = wintosystrayicon(ev->window))) {
/* KLUDGE! sometimes icons occasionally unmap their windows, but do
* _not_ destroy them. We map those windows back */
XMapRaised(dpy, c->win);
updatesystray();
}
}
void updatebars(void) {
unsigned int w;
Monitor *m;
XSetWindowAttributes wa = {.override_redirect = True,
.background_pixmap = ParentRelative,
.event_mask = ButtonPressMask | ExposureMask};
XClassHint ch = {"dwm", "dwm"};
for (m = mons; m; m = m->next) {
if (m->barwin)
continue;
w = m->ww;
if (showsystray && m == systraytomon(m))
w -= getsystraywidth();
m->barwin = XCreateWindow(dpy, root, m->wx, m->by, w, bh, 0, DefaultDepth(dpy, screen),
CopyFromParent, DefaultVisual(dpy, screen),
CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
if (showsystray && m == systraytomon(m))
XMapRaised(dpy, systray->win);
XMapRaised(dpy, m->barwin);
XSetClassHint(dpy, m->barwin, &ch);
}
}
void updatebarpos(Monitor *m) {
m->wy = m->my;
m->wh = m->mh;
if (m->showbar) {
m->wh -= bh;
m->by = m->topbar ? m->wy : m->wy + m->wh;
m->wy = m->topbar ? m->wy + bh : m->wy;
} else
m->by = -bh;
}
void updateclientlist(void) {
Client *c;
Monitor *m;
XDeleteProperty(dpy, root, netatom[NetClientList]);
for (m = mons; m; m = m->next)
for (c = m->clients; c; c = c->next)
XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend,
(unsigned char *)&(c->win), 1);
}
int updategeom(void) {
int dirty = 0;
#ifdef XINERAMA
if (XineramaIsActive(dpy)) {
int i, j, n, nn;
Client *c;
Monitor *m;
XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
XineramaScreenInfo *unique = NULL;
for (n = 0, m = mons; m; m = m->next, n++)
;
/* only consider unique geometries as separate screens */
unique = ecalloc(nn, sizeof(XineramaScreenInfo));
for (i = 0, j = 0; i < nn; i++)
if (isuniquegeom(unique, j, &info[i]))
memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
XFree(info);
nn = j;
/* new monitors if nn > n */
for (i = n; i < nn; i++) {
for (m = mons; m && m->next; m = m->next)
;
if (m)
m->next = createmon();
else
mons = createmon();
}
for (i = 0, m = mons; i < nn && m; m = m->next, i++)
if (i >= n || unique[i].x_org != m->mx || unique[i].y_org != m->my ||
unique[i].width != m->mw || unique[i].height != m->mh) {
dirty = 1;
m->num = i;
m->mx = m->wx = unique[i].x_org;
m->my = m->wy = unique[i].y_org;
m->mw = m->ww = unique[i].width;
m->mh = m->wh = unique[i].height;
updatebarpos(m);
}
/* removed monitors if n > nn */
for (i = nn; i < n; i++) {
for (m = mons; m && m->next; m = m->next)
;
while ((c = m->clients)) {
dirty = 1;
m->clients = c->next;
detachstack(c);
c->mon = mons;
attachtop(c);
attachstack(c);
}
if (m == selmon)
selmon = mons;
cleanupmon(m);
}
free(unique);
} else
#endif /* XINERAMA */
{ /* default monitor setup */
if (!mons)
mons = createmon();
if (mons->mw != sw || mons->mh != sh) {
dirty = 1;
mons->mw = mons->ww = sw;
mons->mh = mons->wh = sh;
updatebarpos(mons);
}
}
if (dirty) {
selmon = mons;
selmon = wintomon(root);
}
return dirty;
}
void updatenumlockmask(void) {
unsigned int i, j;
XModifierKeymap *modmap;
numlockmask = 0;
modmap = XGetModifierMapping(dpy);
for (i = 0; i < 8; i++)
for (j = 0; j < modmap->max_keypermod; j++)
if (modmap->modifiermap[i * modmap->max_keypermod + j] ==
XKeysymToKeycode(dpy, XK_Num_Lock))
numlockmask = (1 << i);
XFreeModifiermap(modmap);
}
void updatesizehints(Client *c) {
long msize;
XSizeHints size;
if (!XGetWMNormalHints(dpy, c->win, &size, &msize))
/* size is uninitialized, ensure that size.flags aren't used */
size.flags = PSize;
if (size.flags & PBaseSize) {
c->basew = size.base_width;
c->baseh = size.base_height;
} else if (size.flags & PMinSize) {
c->basew = size.min_width;
c->baseh = size.min_height;
} else
c->basew = c->baseh = 0;
if (size.flags & PResizeInc) {
c->incw = size.width_inc;
c->inch = size.height_inc;
} else
c->incw = c->inch = 0;
if (size.flags & PMaxSize) {
c->maxw = size.max_width;
c->maxh = size.max_height;
} else
c->maxw = c->maxh = 0;
if (size.flags & PMinSize) {
c->minw = size.min_width;
c->minh = size.min_height;
} else if (size.flags & PBaseSize) {
c->minw = size.base_width;
c->minh = size.base_height;
} else
c->minw = c->minh = 0;
if (size.flags & PAspect) {
c->mina = (float)size.min_aspect.y / size.min_aspect.x;
c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
} else
c->maxa = c->mina = 0.0;
c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw && c->maxh == c->minh);
c->hintsvalid = 1;
}
void updatestatus(void) {
if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
strcpy(stext, "dwm-" VERSION);
drawbar(selmon);
updatesystray();
}
void updatesystrayicongeom(Client *i, int w, int h) {
if (i) {
i->h = bh;
if (w == h)
i->w = bh;
else if (h == bh)
i->w = w;
else
i->w = (int)((float)bh * ((float)w / (float)h));
applysizehints(i, &(i->x), &(i->y), &(i->w), &(i->h), False);
/* force icons into the systray dimensions if they don't want to */
if (i->h > bh) {
if (i->w == i->h)
i->w = bh;
else
i->w = (int)((float)bh * ((float)i->w / (float)i->h));
i->h = bh;
}
}
}
void updatesystrayiconstate(Client *i, XPropertyEvent *ev) {
long flags;
int code = 0;
if (!showsystray || !i || ev->atom != xatom[XembedInfo] ||
!(flags = getatomprop(i, xatom[XembedInfo])))
return;
if (flags & XEMBED_MAPPED && !i->tags) {
i->tags = 1;
code = XEMBED_WINDOW_ACTIVATE;
XMapRaised(dpy, i->win);
setclientstate(i, NormalState);
} else if (!(flags & XEMBED_MAPPED) && i->tags) {
i->tags = 0;
code = XEMBED_WINDOW_DEACTIVATE;
XUnmapWindow(dpy, i->win);
setclientstate(i, WithdrawnState);
} else
return;
sendevent(i->win, xatom[Xembed], StructureNotifyMask, CurrentTime, code, 0, systray->win,
XEMBED_EMBEDDED_VERSION);
}
void updatesystray(void) {
XSetWindowAttributes wa;
XWindowChanges wc;
Client *i;
Monitor *m = systraytomon(NULL);
unsigned int x = m->mx + m->mw;
unsigned int sw = TEXTW(stext) - lrpad + systrayspacing;
unsigned int w = 1;
if (!showsystray)
return;
if (systrayonleft)
x -= sw + lrpad / 2;
if (!systray) {
/* init systray */
if (!(systray = (Systray *)calloc(1, sizeof(Systray))))
die("fatal: could not malloc() %u bytes\n", sizeof(Systray));
systray->win =
XCreateSimpleWindow(dpy, root, x, m->by, w, bh, 0, 0, scheme[SchemeSel][ColBg].pixel);
wa.event_mask = ButtonPressMask | ExposureMask;
wa.override_redirect = True;
wa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
XSelectInput(dpy, systray->win, SubstructureNotifyMask);
XChangeProperty(dpy, systray->win, netatom[NetSystemTrayOrientation], XA_CARDINAL, 32,
PropModeReplace, (unsigned char *)&netatom[NetSystemTrayOrientationHorz],
1);
XChangeWindowAttributes(dpy, systray->win, CWEventMask | CWOverrideRedirect | CWBackPixel,
&wa);
XMapRaised(dpy, systray->win);
XSetSelectionOwner(dpy, netatom[NetSystemTray], systray->win, CurrentTime);
if (XGetSelectionOwner(dpy, netatom[NetSystemTray]) == systray->win) {
sendevent(root, xatom[Manager], StructureNotifyMask, CurrentTime,
netatom[NetSystemTray], systray->win, 0, 0);
XSync(dpy, False);
} else {
fprintf(stderr, "dwm: unable to obtain system tray.\n");
free(systray);
systray = NULL;
return;
}
}
for (w = 0, i = systray->icons; i; i = i->next) {
/* make sure the background color stays the same */
wa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
XChangeWindowAttributes(dpy, i->win, CWBackPixel, &wa);
XMapRaised(dpy, i->win);
w += systrayspacing;
i->x = w;
XMoveResizeWindow(dpy, i->win, i->x, 0, i->w, i->h);
w += i->w;
if (i->mon != m)
i->mon = m;
}
w = w ? w + systrayspacing : 1;
x -= w;
XMoveResizeWindow(dpy, systray->win, x, m->by, w, bh);
wc.x = x;
wc.y = m->by;
wc.width = w;
wc.height = bh;
wc.stack_mode = Above;
wc.sibling = m->barwin;
XConfigureWindow(dpy, systray->win, CWX | CWY | CWWidth | CWHeight | CWSibling | CWStackMode,
&wc);
XMapWindow(dpy, systray->win);
XMapSubwindows(dpy, systray->win);
/* redraw background */
XSetForeground(dpy, drw->gc, scheme[SchemeNorm][ColBg].pixel);
XFillRectangle(dpy, systray->win, drw->gc, 0, 0, w, bh);
XSync(dpy, False);
}
void updatetitle(Client *c) {
if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
if (c->name[0] == '\0') /* hack to mark broken clients */
strcpy(c->name, broken);
}
void updatewindowtype(Client *c) {
Atom state = getatomprop(c, netatom[NetWMState]);
Atom wtype = getatomprop(c, netatom[NetWMWindowType]);
if (state == netatom[NetWMFullscreen])
setfullscreen(c, 1);
if (wtype == netatom[NetWMWindowTypeDialog])
c->isfloating = 1;
}
void updatewmhints(Client *c) {
XWMHints *wmh;
if ((wmh = XGetWMHints(dpy, c->win))) {
if (c == selmon->sel && wmh->flags & XUrgencyHint) {
wmh->flags &= ~XUrgencyHint;
XSetWMHints(dpy, c->win, wmh);
} else
c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0;
if (wmh->flags & InputHint)
c->neverfocus = !wmh->input;
else
c->neverfocus = 0;
XFree(wmh);
}
}
void view(const Arg *arg) {
int i;
unsigned int tmptag;
if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
return;
selmon->seltags ^= 1; /* toggle sel tagset */
if (arg->ui & TAGMASK) {
selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
selmon->pertag->prevtag = selmon->pertag->curtag;
if (arg->ui == ~0)
selmon->pertag->curtag = 0;
else {
for (i = 0; !(arg->ui & 1 << i); i++)
;
selmon->pertag->curtag = i + 1;
}
} else {
tmptag = selmon->pertag->prevtag;
selmon->pertag->prevtag = selmon->pertag->curtag;
selmon->pertag->curtag = tmptag;
}
selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag];
selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag];
selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag];
selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt];
selmon->lt[selmon->sellt ^ 1] =
selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt ^ 1];
if (selmon->showbar != selmon->pertag->showbars[selmon->pertag->curtag])
togglebar(NULL);
focus(NULL);
arrange(selmon);
}
pid_t winpid(Window w) {
pid_t result = 0;
#ifdef __linux__
xcb_res_client_id_spec_t spec = {0};
spec.client = w;
spec.mask = XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID;
xcb_generic_error_t *e = NULL;
xcb_res_query_client_ids_cookie_t c = xcb_res_query_client_ids(xcon, 1, &spec);
xcb_res_query_client_ids_reply_t *r = xcb_res_query_client_ids_reply(xcon, c, &e);
if (!r)
return (pid_t)0;
xcb_res_client_id_value_iterator_t i = xcb_res_query_client_ids_ids_iterator(r);
for (; i.rem; xcb_res_client_id_value_next(&i)) {
spec = i.data->spec;
if (spec.mask & XCB_RES_CLIENT_ID_MASK_LOCAL_CLIENT_PID) {
uint32_t *t = xcb_res_client_id_value_value(i.data);
result = *t;
break;
}
}
free(r);
if (result == (pid_t)-1)
result = 0;
#endif /* __linux__ */
#ifdef __OpenBSD__
Atom type;
int format;
unsigned long len, bytes;
unsigned char *prop;
pid_t ret;
if (XGetWindowProperty(dpy, w, XInternAtom(dpy, "_NET_WM_PID", 0), 0, 1, False, AnyPropertyType,
&type, &format, &len, &bytes, &prop) != Success ||
!prop)
return 0;
ret = *(pid_t *)prop;
XFree(prop);
result = ret;
#endif /* __OpenBSD__ */
return result;
}
pid_t getparentprocess(pid_t p) {
unsigned int v = 0;
#ifdef __linux__
FILE *f;
char buf[256];
snprintf(buf, sizeof(buf) - 1, "/proc/%u/stat", (unsigned)p);
if (!(f = fopen(buf, "r")))
return 0;
fscanf(f, "%*u %*s %*c %u", &v);
fclose(f);
#endif /* __linux__*/
#ifdef __OpenBSD__
int n;
kvm_t *kd;
struct kinfo_proc *kp;
kd = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, NULL);
if (!kd)
return 0;
kp = kvm_getprocs(kd, KERN_PROC_PID, p, sizeof(*kp), &n);
v = kp->p_ppid;
#endif /* __OpenBSD__ */
return (pid_t)v;
}
int isdescprocess(pid_t p, pid_t c) {
while (p != c && c != 0)
c = getparentprocess(c);
return (int)c;
}
Client *termforwin(const Client *w) {
Client *c;
Monitor *m;
if (!w->pid || w->isterminal)
return NULL;
for (m = mons; m; m = m->next) {
for (c = m->clients; c; c = c->next) {
if (c->isterminal && !c->swallowing && c->pid && isdescprocess(c->pid, w->pid))
return c;
}
}
return NULL;
}
Client *swallowingclient(Window w) {
Client *c;
Monitor *m;
for (m = mons; m; m = m->next) {
for (c = m->clients; c; c = c->next) {
if (c->swallowing && c->swallowing->win == w)
return c;
}
}
return NULL;
}
Client *wintoclient(Window w) {
Client *c;
Monitor *m;
for (m = mons; m; m = m->next)
for (c = m->clients; c; c = c->next)
if (c->win == w)
return c;
return NULL;
}
Monitor *wintomon(Window w) {
int x, y;
Client *c;
Monitor *m;
if (w == root && getrootptr(&x, &y))
return recttomon(x, y, 1, 1);
for (m = mons; m; m = m->next)
if (w == m->barwin)
return m;
if ((c = wintoclient(w)))
return c->mon;
return selmon;
}
Client *wintosystrayicon(Window w) {
Client *i = NULL;
if (!showsystray || !w)
return i;
for (i = systray->icons; i && i->win != w; i = i->next)
;
return i;
}
/* There's no way to check accesses to destroyed windows, thus those cases are
* ignored (especially on UnmapNotify's). Other types of errors call Xlibs
* default error handler, which may call exit. */
int xerror(Display *dpy, XErrorEvent *ee) {
if (ee->error_code == BadWindow ||
(ee->request_code == X_SetInputFocus && ee->error_code == BadMatch) ||
(ee->request_code == X_PolyText8 && ee->error_code == BadDrawable) ||
(ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable) ||
(ee->request_code == X_PolySegment && ee->error_code == BadDrawable) ||
(ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch) ||
(ee->request_code == X_GrabButton && ee->error_code == BadAccess) ||
(ee->request_code == X_GrabKey && ee->error_code == BadAccess) ||
(ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
return 0;
fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n", ee->request_code,
ee->error_code);
return xerrorxlib(dpy, ee); /* may call exit */
}
int xerrordummy(Display *dpy, XErrorEvent *ee) { return 0; }
/* Startup Error handler to check if another window manager
* is already running. */
int xerrorstart(Display *dpy, XErrorEvent *ee) {
die("dwm: another window manager is already running");
return -1;
}
Monitor *systraytomon(Monitor *m) {
Monitor *t;
int i, n;
if (!systraypinning) {
if (!m)
return selmon;
return m == selmon ? m : NULL;
}
for (n = 1, t = mons; t && t->next; n++, t = t->next)
;
for (i = 1, t = mons; t && t->next && i < systraypinning; i++, t = t->next)
;
if (systraypinningfailfirst && n < systraypinning)
return mons;
return t;
}
void zoom(const Arg *arg) {
Client *c = selmon->sel;
if (!selmon->lt[selmon->sellt]->arrange || !c || c->isfloating)
return;
if (c == nexttiled(selmon->clients) && !(c = nexttiled(c->next)))
return;
pop(c);
}
void resource_load(XrmDatabase db, char *name, enum resource_type rtype, void *dst) {
char *sdst = NULL;
int *idst = NULL;
float *fdst = NULL;
sdst = dst;
idst = dst;
fdst = dst;
char fullname[256];
char *type;
XrmValue ret;
snprintf(fullname, sizeof(fullname), "%s.%s", "dwm", name);
fullname[sizeof(fullname) - 1] = '\0';
XrmGetResource(db, fullname, "*", &type, &ret);
if (!(ret.addr == NULL || strncmp("String", type, 64))) {
switch (rtype) {
case STRING:
strcpy(sdst, ret.addr);
break;
case INTEGER:
*idst = strtoul(ret.addr, NULL, 10);
break;
case FLOAT:
*fdst = strtof(ret.addr, NULL);
break;
}
}
}
void load_xresources(void) {
Display *display;
char *resm;
XrmDatabase db;
ResourcePref *p;
display = XOpenDisplay(NULL);
resm = XResourceManagerString(display);
if (!resm)
return;
db = XrmGetStringDatabase(resm);
for (p = resources; p < resources + LENGTH(resources); p++)
resource_load(db, p->name, p->type, p->dst);
XCloseDisplay(display);
}
int main(int argc, char *argv[]) {
if (argc == 2 && !strcmp("-v", argv[1]))
die("dwm-" VERSION);
else if (argc != 1)
die("usage: dwm [-v]");
if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
fputs("warning: no locale support\n", stderr);
if (!(dpy = XOpenDisplay(NULL)))
die("dwm: cannot open display");
if (!(xcon = XGetXCBConnection(dpy)))
die("dwm: cannot get xcb connection\n");
checkotherwm();
XrmInitialize();
load_xresources();
setup();
#ifdef __OpenBSD__
if (pledge("stdio rpath proc exec ps", NULL) == -1)
die("pledge");
#endif /* __OpenBSD__ */
scan();
run();
if (restart)
execvp(argv[0], argv);
cleanup();
XCloseDisplay(dpy);
return EXIT_SUCCESS;
}