c语言dwm,dwm.c · 标杆杆/dwm - Gitee.com

简宏义

2023-12-01

/* 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

#ifdef XINERAMA

#include

#endif /* XINERAMA */

#include

#include "drw.h"

#include "util.h"

/* macros */

#define BUTTONMASK (ButtonPressMask|ButtonReleaseMask)

#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 ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags]))

#define LENGTH(X) (sizeof X / sizeof X[0])

#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)

/* enums */

enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */

enum { SchemeNorm, SchemeSel }; /* color schemes */

enum { NetSupported, NetWMName, NetWMState, NetWMCheck,

NetWMFullscreen, NetActiveWindow, NetWMWindowType,

NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH 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;

int bw, oldbw;

unsigned int tags;

int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;

Client *next;

Client *snext;

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;

unsigned int tags;

int isfloating;

int monitor;

} Rule;

/* function declarations */

static void applyrules(Client *c);

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 attachstack(Client *c);

static void buttonpress(XEvent *e);

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 Atom getatomprop(Client *c, Atom prop);

static int getrootptr(int *x, int *y);

static long getstate(Window w);

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 void motionnotify(XEvent *e);

static void movemouse(const Arg *arg);

static Client *nexttiled(Client *c);

static void pop(Client *);

static void propertynotify(XEvent *e);

static void quit(const Arg *arg);

static Monitor *recttomon(int x, int y, int w, int h);

static void resize(Client *c, int x, int y, int w, int h, int interact);

static void resizeclient(Client *c, int x, int y, int w, int h);

static void resizemouse(const Arg *arg);

static void restack(Monitor *m);

static void run(void);

static void runAutostart(void);

static void scan(void);

static int sendevent(Client *c, Atom proto);

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 sigchld(int unused);

static void spawn(const Arg *arg);

static void tag(const Arg *arg);

static void tagmon(const Arg *arg);

static void tile(Monitor *);

static void togglebar(const Arg *arg);

static void togglefloating(const Arg *arg);

static void togglescratch(const Arg *arg);

static void togglefullscr(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 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 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);

/* variables */

static const char broken[] = "broken";

static char stext[256];

static int screen;

static int sw, sh; /* X display screen geometry width, height */

static int bh, blw = 0; /* bar geometry */

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,

[MotionNotify] = motionnotify,

[PropertyNotify] = propertynotify,

[UnmapNotify] = unmapnotify

};

static Atom wmatom[WMLast], netatom[NetLast];

static int running = 1;

static Cur *cursor[CurLast];

static Clr **scheme;

static Display *dpy;

static Drw *drw;

static Monitor *mons, *selmon;

static Window root, wmcheckwin;

/* 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 unsigned int scratchtag = 1 << LENGTH(tags);

/* 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)

{

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) {

/* 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, occ = 0;

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;

for (c = m->clients; c; c = c->next)

occ |= c->tags == 255 ? 0 : 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 + blw)

click = ClkLtSymbol;

else if (ev->x > selmon->ww - (int)TEXTW(stext))

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

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(colors); i++)

free(scheme[i]);

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;

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);

}

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;

int boxw = drw->fonts->h / 6 + 2;

unsigned int i, occ = 0, urg = 0;

Client *c;

/* draw status first so it can be overdrawn by tags later */

if (m == selmon) { /* status is only drawn on selected monitor */

drw_setscheme(drw, scheme[SchemeNorm]);

tw = TEXTW(stext) - lrpad + 2; /* 2px right padding */

drw_text(drw, m->ww - tw, 0, tw, bh, 0, stext, 0);

}

for (c = m->clients; c; c = c->next) {

occ |= c->tags == 255 ? 0 : 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 ? SchemeSel : SchemeNorm]);

drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i);

x += w;

}

w = blw = 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[m == selmon ? SchemeSel : 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

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);

}

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;

if (!selmon->sel)

return;

if (arg->i > 0) {

for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);

if (!c)

for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next);

} else {

for (i = selmon->clients; i != selmon->sel; i = i->next)

if (ISVISIBLE(i))

c = i;

if (!c)

for (; i; i = i->next)

if (ISVISIBLE(i))

c = i;

}

if (c) {

focus(c);

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);

}

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, 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->mx + c->mon->mw)

c->x = c->mon->mx + c->mon->mw - WIDTH(c);

if (c->y + HEIGHT(c) > c->mon->my + c->mon->mh)

c->y = c->mon->my + c->mon->mh - HEIGHT(c);

c->x = MAX(c->x, c->mon->mx);

/* only fix client y-offset, if the client center might cover the bar */

c->y = MAX(c->y, ((c->mon->by == c->mon->my) && (c->x + (c->w / 2) >= c->mon->wx)

&& (c->x + (c->w / 2) < c->mon->wx + c->mon->ww)) ? bh : c->mon->my);

c->bw = borderpx;

selmon->tagset[selmon->seltags] &= ~scratchtag;

if (!strcmp(c->name, scratchpadname)) {

c->mon->tagset[c->mon->seltags] |= c->tags = scratchtag;

c->isfloating = True;

c->x = c->mon->wx + (c->mon->ww / 2 - WIDTH(c) / 2);

c->y = c->mon->wy + (c->mon->wh / 2 - HEIGHT(c) / 2);

}

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))

return;

if (wa.override_redirect)

return;

if (!wintoclient(ev->window))

manage(ev->window, &wa);

}

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 ((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:

updatesizehints(c);

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

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;

if (((nexttiled(c->mon->clients) == c && !nexttiled(c->next))

|| &monocle == c->mon->lt[c->mon->sellt]->arrange)

&& !c->isfullscreen && !c->isfloating) {

c->w = wc.width += c->bw * 2;

c->h = wc.height += c->bw * 2;

wc.border_width = 0;

}

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;

Client *c;

Monitor *m;

XEvent ev;

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;

if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,

None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess)

return;

XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, 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;

nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);

nh = MAX(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, c->x, c->y, nw, nh, 1);

break;

}

} while (ev.type != ButtonRelease);

XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, 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

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

runAutostart(void) {

system("cd ~/Script; ./autostart.sh &");

system("cd ~/Script; ./autostart_wait.sh &");

}

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 */

attach(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(Client *c, Atom proto)

{

int n;

Atom *protocols;

int exists = 0;

XEvent ev;

if (XGetWMProtocols(dpy, c->win, &protocols, &n)) {

while (!exists && n--)

exists = protocols[n] == proto;

XFree(protocols);

}

if (exists) {

ev.type = ClientMessage;

ev.xclient.window = c->win;

ev.xclient.message_type = wmatom[WMProtocols];

ev.xclient.format = 32;

ev.xclient.data.l[0] = proto;

ev.xclient.data.l[1] = CurrentTime;

XSendEvent(dpy, c->win, False, NoEventMask, &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, wmatom[WMTakeFocus]);

}

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;

/* clean up any zombies immediately */

sigchld(0);

/* 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[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);

/* 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(colors), sizeof(Clr *));

for (i = 0; i < LENGTH(colors); i++)

scheme[i] = drw_scm_create(drw, colors[i], 3);

/* 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

sigchld(int unused)

{

if (signal(SIGCHLD, sigchld) == SIG_ERR)

die("can't install SIGCHLD handler:");

while (0 < waitpid(-1, NULL, WNOHANG));

}

void

spawn(const Arg *arg)

{

if (arg->v == dmenucmd)

dmenumon[0] = '0' + selmon->num;

selmon->tagset[selmon->seltags] &= ~scratchtag;

if (fork() == 0) {

if (dpy)

close(ConnectionNumber(dpy));

setsid();

execvp(((char **)arg->v)[0], (char **)arg->v);

fprintf(stderr, "dwm: execvp %s", ((char **)arg->v)[0]);

perror(" failed");

exit(EXIT_SUCCESS);

}

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);

XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);

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->tags & scratchtag); c = c->next);

if (found) {

unsigned int newtagset = selmon->tagset[selmon->seltags] ^ scratchtag;

if (newtagset) {

selmon->tagset[selmon->seltags] = newtagset;

focus(NULL);

arrange(selmon);

}

if (ISVISIBLE(c)) {

focus(c);

restack(selmon);

}

} else

spawn(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;

detach(c);

detachstack(c);

if (!destroyed) {

wc.border_width = c->oldbw;

XGrabServer(dpy); /* avoid race conditions */

XSetErrorHandler(xerrordummy);

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);

focus(NULL);

updateclientlist();

arrange(m);

}

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);

}

void

updatebars(void)

{

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;

m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),

CopyFromParent, DefaultVisual(dpy, screen),

CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);

XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);

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()

{

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;

if (n <= nn) { /* new monitors available */

for (i = 0; i < (nn - n); 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);

}

} else { /* less monitors available nn < n */

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;

attach(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);

}

void

updatestatus(void)

{

if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))

strcpy(stext, "dwm-"VERSION);

drawbar(selmon);

}

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);

}

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;

}

/* 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;

}

void

zoom(const Arg *arg)

{

Client *c = selmon->sel;

if (!selmon->lt[selmon->sellt]->arrange

|| (selmon->sel && selmon->sel->isfloating))

return;

if (c == nexttiled(selmon->clients))

if (!c || !(c = nexttiled(c->next)))

return;

pop(c);

}

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");

checkotherwm();

setup();

#ifdef __OpenBSD__

if (pledge("stdio rpath proc exec", NULL) == -1)

die("pledge");

#endif /* __OpenBSD__ */

scan();

runAutostart();

run();

cleanup();

XCloseDisplay(dpy);

return EXIT_SUCCESS;

}

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