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dwm.c
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dwm.c
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/* See LICENSE file for copyright and license details.
*
* dynamic window manager is designed like any other X client as well. It is
* driven through handling X events. In contrast to other X clients, a window
* manager selects for SubstructureRedirectMask on the root window, to receive
* events about window (dis-)appearance. Only one X connection at a time is
* allowed to select for this event mask.
*
* The event handlers of dwm are organized in an array which is accessed
* whenever a new event has been fetched. This allows event dispatching
* in O(1) time.
*
* Each child of the root window is called a client, except windows which have
* set the override_redirect flag. Clients are organized in a linked client
* list on each monitor, the focus history is remembered through a stack list
* on each monitor. Each client contains a bit array to indicate the tags of a
* client.
*
* Keys and tagging rules are organized as arrays and defined in config.h.
*
* To understand everything else, start reading main().
*/
#include <errno.h>
#include <locale.h>
#include <signal.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>
#include <stdint.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <X11/cursorfont.h>
#include <X11/keysym.h>
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/Xproto.h>
#include <X11/Xutil.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 <sys/sysctl.h>
#include <kvm.h>
#endif /* __OpenBSD */
#include <fcntl.h>
#include <time.h>
#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 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]) || C->issticky)
#define HIDDEN(C) ((getstate(C->win) == IconicState))
#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 NUMTAGS (LENGTH(tags) + LENGTH(scratchpads))
#define TAGMASK ((1 << NUMTAGS) - 1)
#define SPTAG(i) ((1 << LENGTH(tags)) << (i))
#define SPTAGMASK (((1 << LENGTH(scratchpads))-1) << LENGTH(tags))
#define TEXTW(X) (drw_fontset_getwidth(drw, (X)) + lrpad)
#define TTEXTW(X) (drw_fontset_getwidth(drw, (X)))
#define ATTACH(C) (C->mon->att[c->mon->selatt]->attach(C))
#define STATUSLENGTH 256
#define DSBLOCKSLOCKFILE "/var/local/dsblocks/dsblocks.pid"
#define DELIMITERENDCHAR 10
#define LSPAD (statuslpad >= 0 ? statuslpad : lrpad / 2) /* status text left padding */
#define RSPAD (statusrpad >= 0 ? statusrpad : lrpad / 2) /* status text right padding */
#define LTPAD (systraylpad >= 0 ? systraylpad : lrpad / 2) /* systray left padding */
#define RTPAD (systrayrpad >= 0 ? systrayrpad : lrpad / 2) /* systray right padding */
#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
#define EXIT_QUIT EXIT_SUCCESS
#define EXIT_RESTART 100
#define EXIT_POWEROFF 101
#define EXIT_REBOOT 102
/* enums */
enum { CurNormal, CurHand, CurResize, CurMove, CurResizeHorzArrow, CurResizeVertArrow, CurLast }; /* cursor */
enum { NetSupported, NetWMName, NetWMIcon, 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, ClkAttSymbol, ClkLtSymbol, ClkStatusText, ClkWinTitle,
ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
enum { FontDefault, FontStatusMonitor, FontWindowTitle }; /* fonts */
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;
float cfact;
int x, y, w, h;
int sfx, sfy, sfw, sfh, sfsaved; /* stored float geometry, used on mode revert */
int oldx, oldy, oldw, oldh;
int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid;
int bw, oldbw;
unsigned int tags;
unsigned int switchtag;
int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen, issticky, isterminal, noswallow;
int fakefullscreen;
unsigned int icw, ich;
Picture icon;
Client *next;
Client *snext;
Monitor *mon;
Window win;
pid_t pid;
long long iconremoved;
Client *swallowing;
};
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 {
const char *symbol;
void (*attach)(Client *);
} Attach;
typedef struct Pertag Pertag;
struct Monitor {
char ltsymbol[16];
float mfact;
int nmaster;
int num;
int by; /* bar geometry */
int btw; /* width of tasks portion of bar */
int bt; /* number of tasks */
int mx, my, mw, mh; /* screen size */
int wx, wy, ww, wh; /* window area */
int gappih; /* horizontal gap between windows */
int gappiv; /* vertical gap between windows */
int gappoh; /* horizontal outer gaps */
int gappov; /* vertical outer gaps */
unsigned int seltags;
unsigned int sellt;
unsigned int selatt;
unsigned int tagset[2];
int showbar;
int topbar;
int hidsel;
int statushandcursor;
Client *clients;
Client *sel;
Client *stack;
Monitor *next;
Window barwin;
const Layout *lt[2];
const Attach *att[2];
unsigned int alttag;
Pertag *pertag;
};
typedef struct {
const char *class;
const char *instance;
const char *title;
unsigned int tags;
int switchtag;
int isfloating;
int isterminal;
int noswallow;
int monitor;
} Rule;
typedef struct {
const char * sig;
void (*func)(const Arg *);
} Signal;
typedef struct Systray Systray;
struct Systray {
Window win;
Client *icons;
};
/* 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 aspectresize(const Arg *arg);
static void attach(Client *c);
static void attachabove(Client *c);
static void attachaside(Client *c);
static void attachbelow(Client *c);
static void attachbottom(Client *c);
static void attachmenu(const Arg *arg);
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 Client *createsystrayicon(XClientMessageEvent *cme);
static void cycleattach(const Arg *arg);
static void cyclelayout(const Arg *arg);
static void destroynotify(XEvent *e);
static void detach(Client *c);
static void detachstack(Client *c);
static Monitor *dirtomon(int dir);
static void dragcfact(const Arg *arg);
static void dragmfact(const Arg *arg);
static void drawbar(Monitor *m);
static void drawbars(void);
/* static void enternotify(XEvent *e); */
static void expose(XEvent *e);
static int fake_signal(void);
static void focus(Client *c);
static void focusdir(const Arg *arg);
static void focusin(XEvent *e);
static void focusmon(const Arg *arg);
static void focusstackvis(const Arg *arg);
static void focusstackhid(const Arg *arg);
static void focusstack(int inc, int vis);
static Atom getatomprop(Client *c, Atom prop);
static pid_t getparentprocess(pid_t p);
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 hide(const Arg *arg);
static void hidewin(Client *c);
static void incnmaster(const Arg *arg);
static void inplacerotate(const Arg *arg);
static int isdescprocess(pid_t p, pid_t c);
static int isprocessrunning(int pid);
static void keypress(XEvent *e);
static void keyrelease(XEvent *e);
static void killclient(const Arg *arg);
static void killscratchpads(void);
static void layoutmenu(const Arg *arg);
static void left_or_master(const Arg *arg);
static void losefullscreen(Client *next);
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 void moveresize(const Arg *arg);
static void moveresizeedge(const Arg *arg);
static Client *nexttiled(Client *c);
static Client *nexttiledall(Client *c);
static void pop(Client *c);
static void propertynotify(XEvent *e);
static void pushclient(const Arg *arg);
static void quit(const Arg *arg);
static Monitor *recttomon(int x, int y, int w, int h);
static void refreshsystray(void);
static void removesystrayicon(Client *i);
static int removeorphanedsystrayicons(void);
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 right_or_stack(const Arg *arg);
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 setattach(const Arg *arg);
static void setbordercolor(Client *c);
static void setclientstate(Client *c, long state);
static void setfocus(Client *c);
static void setfont(int i);
static void setfullscreen(Client *c, int fullscreen);
static void setlayout(const Arg *arg);
static void setcfact(const Arg *arg);
static void setmfact(const Arg *arg);
static void setsystraytimer(void);
static void setup(void);
static void seturgent(Client *c, int urg);
static void shiftviewclients(const Arg *arg);
static void show(const Arg *arg);
static void showwin(Client *c);
static void showhide(Client *c);
static void sigdsblocks(const Arg *arg);
static void spawn(const Arg *arg);
static Monitor *systraytomon(Monitor *m);
static int swallow(Client *p, Client *c);
static Client *swallowingclient(Window w);
static int swapclients(Client *a, Client *b);
static void swapfocus(const Arg *arg);
static void tag(const Arg *arg);
static void tagmon(const Arg *arg);
static Client *termforwin(const Client *c);
static int tilepos(Client *c);
static void togglealttag(const Arg *arg);
static void togglebar(const Arg *arg);
static void togglefakefullscreen(const Arg *arg);
static void togglefloating(const Arg *arg);
static void togglefullscreen(const Arg *arg);
static void togglescratch(const Arg *arg);
static void togglesticky(const Arg *arg);
static void toggletag(const Arg *arg);
static void toggleview(const Arg *arg);
static void togglewin(const Arg *arg);
static void unfocus(Client *c, int setfocus);
static void unmanage(Client *c, int destroyed);
static void unmapnotify(XEvent *e);
static void unswallow(Client *c);
static void updatebarpos(Monitor *m);
static void updatebars(void);
static void updateclientlist(void);
static void updatedsblockssig(int x);
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 pid_t winpid(Window w);
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 zoomswap(const Arg *arg);
/* variables */
static const char broken[] = "broken";
static char stextc[STATUSLENGTH];
static char stexts[STATUSLENGTH];
static int screen;
static int sw, sh; /* X display screen geometry width, height */
static int bh, bte, bae, ble; /* bar geometry */
static int wsbar; /* width of selmon bar */
static int wstext; /* width of status text */
static int lrpad; /* sum of left and right padding for text */
static int (*xerrorxlib)(Display *, XErrorEvent *);
static unsigned int dsblockssig;
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,
[KeyRelease] = keyrelease,
[MappingNotify] = mappingnotify,
[MapRequest] = maprequest,
[MotionNotify] = motionnotify,
[PropertyNotify] = propertynotify,
[ResizeRequest] = resizerequest,
[UnmapNotify] = unmapnotify
};
static Atom wmatom[WMLast], netatom[NetLast], xatom[XLast];
static int exitcode = EXIT_QUIT;
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;
static Systray *systray = NULL;
static int systraytimer;
static xcb_connection_t *xcon;
/* configuration, allows nested code to access above variables */
#include "config.h"
#if SHOWWINICON
static void freeicon(Client *c);
static Picture geticonprop(Window w, unsigned int *icw, unsigned int *ich);
static void updateicon(Client *c);
#endif
/* 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, newtagset;
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->isterminal = r->isterminal;
c->noswallow = r->noswallow;
c->isfloating = r->isfloating;
c->tags |= r->tags;
if ((r->tags & SPTAGMASK) && r->isfloating) {
c->x = c->mon->wx + (c->mon->ww / 2 - WIDTH(c) / 2);
c->y = c->mon->wy + (c->mon->wh / 2 - HEIGHT(c) / 2);
}
for (m = mons; m && m->num != r->monitor; m = m->next);
if (m)
c->mon = m;
if (r->switchtag) {
selmon = c->mon;
if (r->switchtag == 2 || r->switchtag == 4)
newtagset = c->mon->tagset[c->mon->seltags] ^ c->tags;
else
newtagset = c->tags;
if (newtagset && !(c->tags & c->mon->tagset[c->mon->seltags])) {
if (r->switchtag == 3 || r->switchtag == 4)
c->switchtag = c->mon->tagset[c->mon->seltags];
if (r->switchtag == 1 || r->switchtag == 3)
view(&((Arg) { .ui = newtagset }));
else {
c->mon->tagset[c->mon->seltags] = newtagset;
arrange(c->mon);
}
}
}
}
}
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] & ~SPTAGMASK);
}
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-1);
m->ltsymbol[sizeof m->ltsymbol-1] = '\0';
if (m->lt[m->sellt]->arrange)
m->lt[m->sellt]->arrange(m);
}
void
aspectresize(const Arg *arg) {
char s[80];
Client *c = selmon->sel;
if (c && arg) {
sprintf(s, "0x 0y %dw %dh", arg->i * c->w / c->h, arg->i);
moveresize(&((Arg) { .v = s }));
}
}
void
attach(Client *c)
{
c->next = c->mon->clients;
c->mon->clients = c;
}
void
attachabove(Client *c)
{
Client *i;
if (!c->mon->sel || c->mon->sel->isfloating || c->mon->sel == c->mon->clients) {
attach(c);
return;
}
for (i = c->mon->clients; i->next != c->mon->sel; i = i->next);
c->next = i->next;
i->next = c;
}
void
attachaside(Client *c)
{
int h = 0, n = 0, t = 0;
Client *i, *m = NULL;
if (!c->mon->nmaster) {
attach(c);
return;
}
for (i = c->mon->clients; i && n < c->mon->nmaster; i = i->next) {
if (!i->isfloating && ISVISIBLE(i)) {
if (HIDDEN(i)) {
h++;
} else {
n++;
t = t + h + 1;
h = 0;
m = i;
}
}
}
if (t < c->mon->nmaster) {
for (i = m ? m->next : c->mon->clients; i && t < c->mon->nmaster; i = i->next) {
if (!i->isfloating && ISVISIBLE(i)) {
m = i;
t++;
}
}
}
if (!m) {
attachbottom(c);
return;
}
c->next = m->next;
m->next = c;
}
void
attachbelow(Client *c)
{
if (!c->mon->sel || c->mon->sel->isfloating) {
attachbottom(c);
return;
}
c->next = c->mon->sel->next;
c->mon->sel->next = c;
}
void
attachbottom(Client *c)
{
Client *i;
c->next = NULL;
if (c->mon->clients) {
for (i = c->mon->clients; i->next; i = i->next);
i->next = c;
} else
c->mon->clients = c;
}
void
attachmenu(const Arg *arg) {
FILE *p;
char c[3], *s;
int i;
if (!(p = popen(attachmenucmd, "r")))
return;
s = fgets(c, sizeof(c), p);
pclose(p);
if (!s || *s == '\0' || *c == '\0')
return;
i = atoi(c);
setattach(&((Arg) { .v = &attachs[i] }));
}
void
attachstack(Client *c)
{
c->snext = c->mon->stack;
c->mon->stack = c;
}
void
buttonpress(XEvent *e)
{
int i, x;
unsigned int click;
Arg arg = {0};
Client *c;
Monitor *m;
XButtonPressedEvent *ev = &e->xbutton;
/* focus monitor if necessary */
if ((m = wintomon(ev->window)) && m != selmon
&& (focusonwheel || (ev->button != Button4 && ev->button != Button5))) {
unfocus(selmon->sel, 1);
selmon = m;
focus(NULL);
}
if (ev->window == selmon->barwin) {
if (ev->x < bte) {
i = -1, x = -ev->x;
do
x += TEXTW(tags[++i]);
while (x <= 0);
click = ClkTagBar;
arg.ui = 1 << i;
} else if (ev->x < bae) {
click = ClkAttSymbol;
} else if (ev->x < ble) {
click = ClkLtSymbol;
} else if (ev->x < wsbar - wstext) {
if (showsystray
&& systrayonleft
&& selmon == systraytomon(selmon)
&& ev->x >= wsbar - wstext - getsystraywidth()) {
return;
}
if (m->bt) {
int remainder = m->btw % m->bt + 1;
int tabw = m->btw / m->bt + 1;
for (x = ble, c = m->clients; c; c = c->next) {
if (ISVISIBLE(c)) {
if (--remainder == 0)
tabw--;
if (ev->x <= (x += tabw))
break;
}
}
arg.v = c;
}
click = ClkWinTitle;
} else if ((x = wsbar - RSPAD - ev->x) > 0 && (x -= wstext - LSPAD - RSPAD) <= 0) {
updatedsblockssig(x);
click = ClkStatusText;
} else {
return;
}
} else if ((c = wintoclient(ev->window))) {
if (focusonwheel || (ev->button != Button4 && ev->button != Button5))
focus(c);
XAllowEvents(dpy, ReplayPointer, CurrentTime);
click = ClkClientWin;
} else if (ev->window == systray->win) {
return;
} else {
click = ClkRootWin;
}
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 || click == ClkWinTitle) && 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);
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);
unsigned int i;
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 = createsystrayicon(cme)))
return;
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;
c->mon = selmon;
/* 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);
XClassHint ch = {"dwmsystray", "dwmsystray"};
XSetClassHint(dpy, c->win, &ch);
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]) {
if (c->fakefullscreen == 2 && c->isfullscreen)
c->fakefullscreen = 3;
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]) {
for (i = 0; i < NUMTAGS && !((1 << i) & c->tags); i++);
if (i < NUMTAGS) {
if (i >= LENGTH(tags)) {
/* active scratchpad window */
selmon->tagset[selmon->seltags] |= (1 << i);
focus(NULL);
arrange(selmon);
} else {
selmon = c->mon;
view(&((Arg) { .ui = 1 << i }));
}
showwin(c);
focus(c);
restack(selmon);
}
}
}
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 && c->fakefullscreen != 1)
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;