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dwm/dwm.c
Jakub Leszczak 3a9a7eea52 Respect decoration hints 
Make dwm respect _MOTIF_WM_HINTS property.  Applications use this
property to notify window managers to not draw window decorations.

Not respecting this property leads to issues with applications that draw
their own borders, like chromium (with "Use system title bar and
borders" turned off) and vlc in fullscreen mode.
2022-02-08 00:56:36 +01:00

3064 lines
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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 <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/Xresource.h>
#include <X11/Xutil.h>
#ifdef XINERAMA
#include <X11/extensions/Xinerama.h>
#endif /* XINERAMA */
#include <X11/Xft/Xft.h>
#include "drw.h"
#include "util.h"
/* macros */
#define BARRULES 20
#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 ISVISIBLE(C, M) ((C->tags & M->tagset[M->seltags]))
#define ISINC(X) ((X) > 1000 && (X) < 3000)
#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 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 TRUNC(X,A,B) (MAX((A), MIN((X), (B))))
#define XRDB_LOAD_COLOR(R,V) if (XrmGetResource(xrdb, R, NULL, &type, &value) == True) { \
if (value.addr != NULL && strnlen(value.addr, 8) == 7 && value.addr[0] == '#') { \
int i = 1; \
for (; i <= 6; i++) { \
if (value.addr[i] < 48) break; \
if (value.addr[i] > 57 && value.addr[i] < 65) break; \
if (value.addr[i] > 70 && value.addr[i] < 97) break; \
if (value.addr[i] > 102) break; \
} \
if (i == 7) { \
strncpy(V, value.addr, 7); \
V[7] = '\0'; \
} \
} \
}
#define MWM_HINTS_FLAGS_FIELD 0
#define MWM_HINTS_DECORATIONS_FIELD 2
#define MWM_HINTS_DECORATIONS (1 << 1)
#define MWM_DECOR_ALL (1 << 0)
#define MWM_DECOR_BORDER (1 << 1)
#define MWM_DECOR_TITLE (1 << 3)
/* enums */
enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
enum { SchemeNorm, SchemeSel }; /* color schemes */
enum { NetSupported, NetWMName, NetWMState, NetWMCheck,
NetWMFullscreen, NetActiveWindow, NetWMWindowType,
NetSystemTray, NetSystemTrayOP, NetSystemTrayOrientation,
NetSystemTrayVisual, NetWMWindowTypeDock, NetSystemTrayOrientationHorz,
NetClientList, NetLast }; /* EWMH atoms */
enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
enum {
BAR_ALIGN_LEFT,
BAR_ALIGN_CENTER,
BAR_ALIGN_RIGHT,
BAR_ALIGN_LEFT_LEFT,
BAR_ALIGN_LEFT_RIGHT,
BAR_ALIGN_LEFT_CENTER,
BAR_ALIGN_NONE,
BAR_ALIGN_RIGHT_LEFT,
BAR_ALIGN_RIGHT_RIGHT,
BAR_ALIGN_RIGHT_CENTER,
BAR_ALIGN_LAST
}; /* bar alignment */
typedef union {
int i;
unsigned int ui;
float f;
const void *v;
} Arg;
typedef struct Monitor Monitor;
typedef struct Bar Bar;
struct Bar {
Window win;
Monitor *mon;
Bar *next;
int idx;
int topbar;
int bx, by, bw, bh; /* bar geometry */
int w[BARRULES]; // module width
int x[BARRULES]; // module position
};
typedef struct {
int max_width;
} BarWidthArg;
typedef struct {
int x;
int w;
} BarDrawArg;
typedef struct {
int rel_x;
int rel_y;
int rel_w;
int rel_h;
} BarClickArg;
typedef struct {
int monitor;
int bar;
int alignment; // see bar alignment enum
int (*widthfunc)(Bar *bar, BarWidthArg *a);
int (*drawfunc)(Bar *bar, BarDrawArg *a);
int (*clickfunc)(Bar *bar, Arg *arg, BarClickArg *a);
char *name; // for debugging
int x, w; // position, width for internal use
} BarRule;
typedef struct {
unsigned int click;
unsigned int mask;
unsigned int button;
void (*func)(const Arg *arg);
const Arg arg;
} Button;
typedef struct Clientlist Clientlist;
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;
int ignoresizehints;
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;
struct Monitor {
char ltsymbol[16];
float mfact;
int nmaster;
int num;
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;
Clientlist *cl;
Client *sel;
Monitor *next;
Bar *bar;
const Layout *lt[2];
};
typedef struct {
const char *class;
const char *instance;
const char *title;
const char *type;
unsigned int tags;
int isfloating;
const char *floatpos;
int monitor;
int matchonce;
} Rule;
struct Clientlist {
Client *clients;
Client *stack;
};
/* 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 attachclients(Monitor *m);
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 drawbarwin(Bar *bar);
static void enternotify(XEvent *e);
static void expose(XEvent *e);
static void floatpos(const Arg *arg);
static void focus(Client *c);
static void focusin(XEvent *e);
static void focusmon(const Arg *arg);
static void focusstack(const Arg *arg);
static void getfloatpos(int pos, char pCh, int size, char sCh, int min_p, int max_s, int cp, int cs, int cbw, int defgrid, int *out_p, int *out_s);
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 losefullscreen(Client *sel, Client *next);
static void loadxrdb(void);
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, Monitor *m);
static void pop(Client *);
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 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 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 setfloatpos(Client *c, const char *floatpos);
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 int stackpos(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 togglefullscreen(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 updatemotifhints(Client *c);
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 void warp(const Client *c);
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 xrdb(const Arg *arg);
static void zoom(const Arg *arg);
#include "patch/include.h"
/* variables */
static const char broken[] = "broken";
static char stext[1024];
static char rawstext[1024];
static char estext[1024];
static char rawestext[1024];
static int screen;
static int sw, sh; /* X display screen geometry width, height */
static int bh; /* 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,
[ResizeRequest] = resizerequest,
[UnmapNotify] = unmapnotify
};
static Atom wmatom[WMLast], netatom[NetLast], motifatom, xatom[XLast];
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 Clientlist *cl;
/* configuration, allows nested code to access above variables */
#include "config.h"
#include "patch/include.c"
/* 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 };
Atom wtype;
/* 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;
wtype = getatomprop(c, netatom[NetWMWindowType]);
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))
&& (!r->type || wtype == XInternAtom(dpy, r->type, False)))
{
c->isfloating = r->isfloating;
c->tags |= r->tags;
for (m = mons; m && (m->tagset[m->seltags] & c->tags) == 0; m = m->next);
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 (c->isfloating && r->floatpos)
setfloatpos(c, r->floatpos);
if (r->matchonce)
break;
}
}
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 (!c->ignoresizehints && (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->cl->stack);
else for (m = mons; m; m = m->next)
showhide(m->cl->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->cl->clients;
c->mon->cl->clients = c;
}
void
attachclients(Monitor *m) {
/* attach clients to the specified monitor */
Monitor *tm;
Client *c;
unsigned int utags = 0;
Bool rmons = False;
if(!m)
return;
/* collect information about the tags in use */
for (tm = mons; tm; tm = tm->next)
if(tm != m)
utags |= tm->tagset[tm->seltags];
for (c = m->cl->clients; c; c = c->next)
if(ISVISIBLE(c, m)) {
/* if client is also visible on other tags that are displayed on
* other monitors, remove these tags */
if(c->tags & utags) {
c->tags = c->tags & m->tagset[m->seltags];
rmons = True;
}
unfocus(c, True);
c->mon = m;
}
if (rmons)
for (tm = mons; tm; tm = tm->next)
if(tm != m)
arrange(tm);
}
void
attachstack(Client *c)
{
c->snext = c->mon->cl->stack;
c->mon->cl->stack = c;
}
void
buttonpress(XEvent *e)
{
int click, i, r, mi;
Arg arg = {0};
Client *c;
Monitor *m;
Bar *bar;
XButtonPressedEvent *ev = &e->xbutton;
const BarRule *br;
BarClickArg carg = { 0, 0, 0, 0 };
click = ClkRootWin;
/* focus monitor if necessary */
if ((m = wintomon(ev->window)) && m != selmon
) {
unfocus(selmon->sel, 1);
selmon = m;
focus(NULL);
}
for (mi = 0, m = mons; m && m != selmon; m = m->next, mi++); // get the monitor index
for (bar = selmon->bar; bar; bar = bar->next) {
if (ev->window == bar->win) {
for (r = 0; r < LENGTH(barrules); r++) {
br = &barrules[r];
if (br->bar != bar->idx || (br->monitor == 'A' && m != selmon) || br->clickfunc == NULL)
continue;
if (br->monitor != 'A' && br->monitor != -1 && br->monitor != mi)
continue;
if (bar->x[r] <= ev->x && ev->x <= bar->x[r] + bar->w[r]) {
carg.rel_x = ev->x - bar->x[r];
carg.rel_y = ev->y;
carg.rel_w = bar->w[r];
carg.rel_h = bar->bh;
click = br->clickfunc(bar, &arg, &carg);
if (click < 0)
return;
break;
}
}
break;
}
}
if (click == ClkRootWin && (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->cl->stack)
unmanage(m->cl->stack, 0);
XUngrabKey(dpy, AnyKey, AnyModifier, root);
while (mons)
cleanupmon(mons);
if (showsystray && systray) {
while (systray->icons)
removesystrayicon(systray->icons);
if (systray->win) {
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) + 1; 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;
Bar *bar;
if (mon == mons)
mons = mons->next;
else {
for (m = mons; m && m->next != mon; m = m->next);
m->next = mon->next;
}
for (bar = mon->bar; bar; bar = mon->bar) {
XUnmapWindow(dpy, bar->win);
XDestroyWindow(dpy, bar->win);
mon->bar = bar->next;
free(bar);
}
free(mon);
}
void
clientmessage(XEvent *e)
{
XWindowAttributes wa;
XSetWindowAttributes swa;
XClientMessageEvent *cme = &e->xclient;
Client *c = wintoclient(cme->window);
unsigned int i;
if (showsystray && systray && 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;
XGetWindowAttributes(dpy, c->win, &wa);
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);
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);
XSync(dpy, False);
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]) {
for (i = 0; i < LENGTH(tags) && !((1 << i) & c->tags); i++);
if (i < LENGTH(tags)) {
const Arg a = {.ui = 1 << i};
view(&a);
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;
Bar *bar;
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->cl->clients; c; c = c->next)
if (c->isfullscreen)
resizeclient(c, m->mx, m->my, m->mw, m->mh);
for (bar = m->bar; bar; bar = bar->next)
XMoveResizeWindow(dpy, bar->win, bar->bx, bar->by, bar->bw, bar->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, m))
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, *mon, *tm;
int i, n, mi, max_bars = 2, istopbar = topbar;
const BarRule *br;
Bar *bar;
/* bail out if the number of monitors exceeds the number of tags */
for (i=1, tm=mons; tm; i++, tm=tm->next);
if (i > LENGTH(tags)) {
fprintf(stderr, "dwm: failed to add monitor, number of tags exceeded\n");
return NULL;
}
/* find the first tag that isn't in use */
for (i=0; i < LENGTH(tags); i++) {
for (tm=mons; tm && !(tm->tagset[tm->seltags] & (1<<i)); tm=tm->next);
if (!tm)
break;
}
/* reassign all tags to monitors since there's currently no free tag for the
* new monitor */
if (i >= LENGTH(tags))
for (i=0, tm=mons; tm; tm=tm->next, i++) {
tm->seltags ^= 1;
tm->tagset[tm->seltags] = (1<<i) & TAGMASK;
}
m = ecalloc(1, sizeof(Monitor));
m->cl = cl;
m->tagset[0] = m->tagset[1] = (1<<i) & TAGMASK;
m->mfact = mfact;
m->nmaster = nmaster;
m->showbar = showbar;
for (mi = 0, mon = mons; mon; mon = mon->next, mi++); // monitor index
m->lt[0] = &layouts[0];
m->lt[1] = &layouts[1 % LENGTH(layouts)];
strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
/* Derive the number of bars for this monitor based on bar rules */
for (n = -1, i = 0; i < LENGTH(barrules); i++) {
br = &barrules[i];
if (br->monitor == 'A' || br->monitor == -1 || br->monitor == mi)
n = MAX(br->bar, n);
}
for (i = 0; i <= n && i < max_bars; i++) {
bar = ecalloc(1, sizeof(Bar));
bar->mon = m;
bar->idx = i;
bar->next = m->bar;
bar->topbar = istopbar;
m->bar = bar;
istopbar = !istopbar;
}
return m;
}
void
destroynotify(XEvent *e)
{
Client *c;
XDestroyWindowEvent *ev = &e->xdestroywindow;
if ((c = wintoclient(ev->window)))
unmanage(c, 1);
else if (showsystray && (c = wintosystrayicon(ev->window))) {
removesystrayicon(c);
drawbarwin(systray->bar);
}
}
void
loadxrdb()
{
Display *display;
char * resm;
XrmDatabase xrdb;
char *type;
XrmValue value;
display = XOpenDisplay(NULL);
if (display != NULL) {
resm = XResourceManagerString(display);
if (resm != NULL) {
xrdb = XrmGetStringDatabase(resm);
if (xrdb != NULL) {
XRDB_LOAD_COLOR("foreground", foreground);
XRDB_LOAD_COLOR("background", background);
XRDB_LOAD_COLOR("accent", accent);
XRDB_LOAD_COLOR("secondary", secondary);
XRDB_LOAD_COLOR("border", border);
XRDB_LOAD_COLOR("color0", termcol0);
XRDB_LOAD_COLOR("color1", termcol1);
XRDB_LOAD_COLOR("color2", termcol2);
XRDB_LOAD_COLOR("color3", termcol3);
XRDB_LOAD_COLOR("color4", termcol4);
XRDB_LOAD_COLOR("color5", termcol5);
XRDB_LOAD_COLOR("color6", termcol6);
XRDB_LOAD_COLOR("color7", termcol7);
XRDB_LOAD_COLOR("color8", termcol8);
XRDB_LOAD_COLOR("color9", termcol9);
XRDB_LOAD_COLOR("color10", termcol10);
XRDB_LOAD_COLOR("color11", termcol11);
XRDB_LOAD_COLOR("color12", termcol12);
XRDB_LOAD_COLOR("color13", termcol13);
XRDB_LOAD_COLOR("color14", termcol14);
XRDB_LOAD_COLOR("color15", termcol15);
}
}
}
XCloseDisplay(display);
}
void
detach(Client *c)
{
Client **tc;
for (tc = &c->mon->cl->clients; *tc && *tc != c; tc = &(*tc)->next);
*tc = c->next;
}
void
detachstack(Client *c)
{
Client **tc, *t;
for (tc = &c->mon->cl->stack; *tc && *tc != c; tc = &(*tc)->snext);
*tc = c->snext;
if (c == c->mon->sel) {
for (t = c->mon->cl->stack; t && !ISVISIBLE(t, c->mon); 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)
{
Bar *bar;
for (bar = m->bar; bar; bar = bar->next)
drawbarwin(bar);
}
void
drawbars(void)
{
Monitor *m;
for (m = mons; m; m = m->next)
drawbar(m);
}
void
drawbarwin(Bar *bar)
{
if (!bar->win)
return;
Monitor *mon;
int r, w, mi;
int rx, lx, rw, lw; // bar size, split between left and right if a center module is added
const BarRule *br;
BarWidthArg warg = { 0 };
BarDrawArg darg = { 0, 0 };
for (mi = 0, mon = mons; mon && mon != bar->mon; mon = mon->next, mi++); // get the monitor index
rw = lw = bar->bw;
rx = lx = 0;
drw_setscheme(drw, scheme[SchemeNorm]);
drw_rect(drw, lx, 0, lw, bh, 1, 1);
for (r = 0; r < LENGTH(barrules); r++) {
br = &barrules[r];
if (br->bar != bar->idx || br->drawfunc == NULL || (br->monitor == 'A' && bar->mon != selmon))
continue;
if (br->monitor != 'A' && br->monitor != -1 && br->monitor != mi)
continue;
drw_setscheme(drw, scheme[SchemeNorm]);
warg.max_width = (br->alignment < BAR_ALIGN_RIGHT_LEFT ? lw : rw);
w = br->widthfunc(bar, &warg);
w = MIN(warg.max_width, w);
if (lw <= 0) { // if left is exhausted then switch to right side, and vice versa
lw = rw;
lx = rx;
} else if (rw <= 0) {
rw = lw;
rx = lx;
}
switch(br->alignment) {
default:
case BAR_ALIGN_NONE:
case BAR_ALIGN_LEFT_LEFT:
case BAR_ALIGN_LEFT:
bar->x[r] = lx;
if (lx == rx) {
rx += w;
rw -= w;
}
lx += w;
lw -= w;
break;
case BAR_ALIGN_LEFT_RIGHT:
case BAR_ALIGN_RIGHT:
bar->x[r] = lx + lw - w;
if (lx == rx)
rw -= w;
lw -= w;
break;
case BAR_ALIGN_LEFT_CENTER:
case BAR_ALIGN_CENTER:
bar->x[r] = lx + lw / 2 - w / 2;
if (lx == rx) {
rw = rx + rw - bar->x[r] - w;
rx = bar->x[r] + w;
}
lw = bar->x[r] - lx;
break;
case BAR_ALIGN_RIGHT_LEFT:
bar->x[r] = rx;
if (lx == rx) {
lx += w;
lw -= w;
}
rx += w;
rw -= w;
break;
case BAR_ALIGN_RIGHT_RIGHT:
bar->x[r] = rx + rw - w;
if (lx == rx)
lw -= w;
rw -= w;
break;
case BAR_ALIGN_RIGHT_CENTER:
bar->x[r] = rx + rw / 2 - w / 2;
if (lx == rx) {
lw = lx + lw - bar->x[r] + w;
lx = bar->x[r] + w;
}
rw = bar->x[r] - rx;
break;
}
bar->w[r] = w;
darg.x = bar->x[r];
darg.w = bar->w[r];
br->drawfunc(bar, &darg);
}
drw_map(drw, bar->win, 0, 0, bar->bw, bar->bh);
}
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
floatpos(const Arg *arg)
{
Client *c = selmon->sel;
if (!c || (selmon->lt[selmon->sellt]->arrange && !c->isfloating))
return;
setfloatpos(c, (char *)arg->v);
resizeclient(c, c->x, c->y, c->w, c->h);
XRaiseWindow(dpy, c->win);
XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w/2, c->h/2);
}
void
focus(Client *c)
{
if (c && c->mon != selmon)
selmon = c->mon;
if (!c || !ISVISIBLE(c, selmon))
for (c = selmon->cl->stack; c && !ISVISIBLE(c, selmon); 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);
warp(selmon->sel);
}
void
focusstack(const Arg *arg)
{
int i = stackpos(arg);
Client *c, *p;
if (i < 0 || !selmon->sel || (selmon->sel->isfullscreen && lockfullscreen))
return;
for(p = NULL, c = selmon->cl->clients; c && (i || !ISVISIBLE(c, selmon));
i -= ISVISIBLE(c, selmon) ? 1 : 0, p = c, c = c->next);
focus(c ? c : p);
restack(selmon);
}
Atom
getatomprop(Client *c, Atom prop)
{
int di;
unsigned long dl;
unsigned char *p = NULL;
Atom da, atom = None;
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;
}
void
getfloatpos(int pos, char pCh, int size, char sCh, int min_p, int max_s, int cp, int cs, int cbw, int defgrid, int *out_p, int *out_s)
{
int abs_p, abs_s, i, delta, rest;
abs_p = pCh == 'A' || pCh == 'a';
abs_s = sCh == 'A' || sCh == 'a';
cs += 2*cbw;
switch(pCh) {
case 'A': // absolute position
cp = pos;
break;
case 'a': // absolute relative position
cp += pos;
break;
case 'y':
case 'x': // client relative position
cp = MIN(cp + pos, min_p + max_s);
break;
case 'Y':
case 'X': // client position relative to monitor
cp = min_p + MIN(pos, max_s);
break;
case 'S': // fixed client position (sticky)
case 'C': // fixed client position (center)
case 'Z': // fixed client right-hand position (position + size)
if (pos == -1)
break;
pos = MAX(MIN(pos, max_s), 0);
if (pCh == 'Z')
cs = abs((cp + cs) - (min_p + pos));
else if (pCh == 'C')
cs = abs((cp + cs / 2) - (min_p + pos));
else
cs = abs(cp - (min_p + pos));
cp = min_p + pos;
sCh = 0; // size determined by position, override defined size
break;
case 'G': // grid
if (pos <= 0)
pos = defgrid; // default configurable
if (size == 0 || pos < 2 || (sCh != 'p' && sCh != 'P'))
break;
delta = (max_s - cs) / (pos - 1);
rest = max_s - cs - delta * (pos - 1);
if (sCh == 'P') {
if (size < 1 || size > pos)
break;
cp = min_p + delta * (size - 1);
} else {
for (i = 0; i < pos && cp >= min_p + delta * i + (i > pos - rest ? i + rest - pos + 1 : 0); i++);
cp = min_p + delta * (MAX(MIN(i + size, pos), 1) - 1) + (i > pos - rest ? i + rest - pos + 1 : 0);
}
break;
}
switch(sCh) {
case 'A': // absolute size
cs = size;
break;
case 'a': // absolute relative size
cs = MAX(1, cs + size);
break;
case '%': // client size percentage in relation to monitor window area size
if (size <= 0)
break;
size = max_s * MIN(size, 100) / 100;
/* falls through */
case 'h':
case 'w': // size relative to client
if (sCh == 'w' || sCh == 'h') {
if (size == 0)
break;
size += cs;
}
/* falls through */
case 'H':
case 'W': // normal size, position takes precedence
if (pCh == 'S' && cp + size > min_p + max_s)
size = min_p + max_s - cp;
else if (size > max_s)
size = max_s;
if (pCh == 'C') { // fixed client center, expand or contract client
delta = size - cs;
if (delta < 0 || (cp - delta / 2 + size <= min_p + max_s))
cp -= delta / 2;
else if (cp - delta / 2 < min_p)
cp = min_p;
else if (delta)
cp = min_p + max_s;
} else if (pCh == 'Z')
cp -= size - cs;
cs = size;
break;
}
if (pCh == '%') // client mid-point position in relation to monitor window area size
cp = min_p + max_s * MAX(MIN(pos, 100), 0) / 100 - (cs) / 2;
if (pCh == 'm' || pCh == 'M')
cp = pos - cs / 2;
if (!abs_p && cp < min_p)
cp = min_p;
if (cp + cs > min_p + max_s && !(abs_p && abs_s)) {
if (abs_p || cp == min_p)
cs = min_p + max_s - cp;
else
cp = min_p + max_s - cs;
}
*out_p = cp;
*out_s = MAX(cs - 2*cbw, 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;
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 = 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
losefullscreen(Client *sel, Client *next)
{
if (!sel || !next)
return;
if (sel->isfullscreen && ISVISIBLE(sel, selmon) && sel->mon == next->mon && !next->isfloating)
setfullscreen(sel, 0);
}
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;
c->ignoresizehints = 0;
updatetitle(c);
c->bw = borderpx;
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->bar->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);
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);
updatemotifhints(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) {
losefullscreen(selmon->sel, c);
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)
{
Client *i;
static XWindowAttributes wa;
XMapRequestEvent *ev = &e->xmaprequest;
if (showsystray && systray && (i = wintosystrayicon(ev->window))) {
sendevent(i->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_WINDOW_ACTIVATE, 0, systray->win, XEMBED_EMBEDDED_VERSION);
drawbarwin(systray->bar);
}
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->cl->clients; c; c = c->next)
if (ISVISIBLE(c, m))
n++;
if (n > 0) /* override layout symbol */
snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n);
for (c = nexttiled(m->cl->clients, m); c; c = nexttiled(c->next, m))
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, Monitor *m)
{
for (; c && (c->isfloating || !ISVISIBLE(c, m)); 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 (showsystray && (c = wintosystrayicon(ev->window))) {
if (ev->atom == XA_WM_NORMAL_HINTS) {
updatesizehints(c);
updatesystrayicongeom(c, c->w, c->h);
}
else
updatesystrayiconstate(c, ev);
drawbarwin(systray->bar);
}
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);
if (c->isurgent)
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 == motifatom)
updatemotifhints(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->cl->clients; c; p = c, c = c->next)
if(!(i -= (ISVISIBLE(c, selmon) && c != sel)))
break;
c = c ? c : p;
detach(sel);
sel->next = c->next;
c->next = sel;
}
arrange(selmon);
}
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->cl->clients, c->mon) == c && !nexttiled(c->next, c->mon))
|| &monocle == c->mon->lt[c->mon->sellt]->arrange)
&& !c->isfullscreen && !c->isfloating
&& NULL != c->mon->lt[c->mon->sellt]->arrange) {
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->bar->win;
for (c = m->cl->stack; c; c = c->snext)
if (!c->isfloating && ISVISIBLE(c, m)) {
XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
wc.sibling = c->win;
}
}
XSync(dpy, False);
while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
if (m == selmon && (m->tagset[m->seltags] & m->sel->tags))
warp(m->sel);
}
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;
int hadfocus = (c == selmon->sel);
unfocus(c, 1);
detach(c);
detachstack(c);
arrange(c->mon);
c->mon = m;
c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
attach(c);
attachstack(c);
arrange(m);
if (hadfocus) {
focus(c);
restack(m);
} else
focus(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;
Atom 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
setfloatpos(Client *c, const char *floatpos)
{
char xCh, yCh, wCh, hCh;
int x, y, w, h, wx, ww, wy, wh;
if (!c || !floatpos)
return;
if (selmon->lt[selmon->sellt]->arrange && !c->isfloating)
return;
switch(sscanf(floatpos, "%d%c %d%c %d%c %d%c", &x, &xCh, &y, &yCh, &w, &wCh, &h, &hCh)) {
case 4:
if (xCh == 'w' || xCh == 'W') {
w = x; wCh = xCh;
h = y; hCh = yCh;
x = -1; xCh = 'C';
y = -1; yCh = 'C';
} else if (xCh == 'p' || xCh == 'P') {
w = x; wCh = xCh;
h = y; hCh = yCh;
x = 0; xCh = 'G';
y = 0; yCh = 'G';
} else if (xCh == 'm' || xCh == 'M') {
getrootptr(&x, &y);
} else {
w = 0; wCh = 0;
h = 0; hCh = 0;
}
break;
case 8:
if (xCh == 'm' || xCh == 'M')
getrootptr(&x, &y);
break;
default:
return;
}
wx = c->mon->wx;
wy = c->mon->wy;
ww = c->mon->ww;
wh = c->mon->wh;
c->ignoresizehints = 1;
getfloatpos(x, xCh, w, wCh, wx, ww, c->x, c->w, c->bw, floatposgrid_x, &c->x, &c->w);
getfloatpos(y, yCh, h, hCh, wy, wh, c->y, c->h, c->bw, floatposgrid_y, &c->y, &c->h);
}
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)
{
selmon->sellt ^= 1;
if (arg && arg->v && arg->v != selmon->lt[selmon->sellt ^ 1])
selmon->lt[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 = 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);
if(!(cl = (Clientlist *)calloc(1, sizeof(Clientlist))))
die("fatal: could not malloc() %u bytes\n", sizeof(Clientlist));
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 + horizpadbar;
bh = drw->fonts->h + vertpadbar;
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[NetSystemTrayVisual] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_VISUAL", False);
netatom[NetWMWindowTypeDock] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DOCK", False);
xatom[Manager] = XInternAtom(dpy, "MANAGER", False);
xatom[Xembed] = XInternAtom(dpy, "_XEMBED", False);
xatom[XembedInfo] = XInternAtom(dpy, "_XEMBED_INFO", 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[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
motifatom = XInternAtom(dpy, "_MOTIF_WM_HINTS", 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) + 1, sizeof(Clr *));
scheme[LENGTH(colors)] = drw_scm_create(drw, colors[0], 3);
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, c->mon)) {
if ((c->tags & SPTAGMASK) && c->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);
}
/* 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 (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);
}
}
int
stackpos(const Arg *arg) {
int n, i;
Client *c, *l;
if(!selmon->cl->clients)
return -1;
if(arg->i == PREVSEL) {
for(l = selmon->cl->stack; l && (!ISVISIBLE(l, selmon) || l == selmon->sel); l = l->snext);
if(!l)
return -1;
for(i = 0, c = selmon->cl->clients; c != l; i += ISVISIBLE(c, selmon) ? 1 : 0, c = c->next);
return i;
}
else if(ISINC(arg->i)) {
if(!selmon->sel)
return -1;
for(i = 0, c = selmon->cl->clients; c != selmon->sel; i += ISVISIBLE(c, selmon) ? 1 : 0, c = c->next);
for(n = i; c; n += ISVISIBLE(c, selmon) ? 1 : 0, c = c->next);
return MOD(i + GETINC(arg->i), n);
}
else if(arg->i < 0) {
for(i = 0, c = selmon->cl->clients; c; i += ISVISIBLE(c, selmon) ? 1 : 0, c = c->next);
return MAX(i + arg->i, 0);
}
else
return arg->i;
}
void
tag(const Arg *arg)
{
Monitor *m;
unsigned int newtags;
if (selmon->sel && arg->ui & TAGMASK) {
newtags = arg->ui & TAGMASK;
for (m = mons; m; m = m->next)
/* if tag is visible on another monitor, move client to the new monitor */
if (m != selmon && m->tagset[m->seltags] & newtags) {
/* prevent moving client to all tags (MODKEY-Shift-0) when multiple monitors are connected */
if(newtags & selmon->tagset[selmon->seltags])
return;
selmon->sel->tags = newtags;
selmon->sel->mon = m;
arrange(m);
break;
}
/* workaround in case just one monitor is connected */
selmon->sel->tags = arg->ui & TAGMASK;
focus(NULL);
arrange(selmon);
}
}
void
tagmon(const Arg *arg)
{
Client *c = selmon->sel;
if (!c || !mons->next)
return;
if (c->isfullscreen) {
c->isfullscreen = 0;
sendmon(c, dirtomon(arg->i));
c->isfullscreen = 1;
resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh);
XRaiseWindow(dpy, c->win);
} else
sendmon(c, dirtomon(arg->i));
}
void
tile(Monitor *m)
{
unsigned int i, n, h, mw, my, ty;
Client *c;
for (n = 0, c = nexttiled(m->cl->clients, m); c; c = nexttiled(c->next, m), 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->cl->clients, m); c; c = nexttiled(c->next, m), 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)
{
Bar *bar;
selmon->showbar = !selmon->showbar;
updatebarpos(selmon);
for (bar = selmon->bar; bar; bar = bar->next)
XMoveResizeWindow(dpy, bar->win, bar->bx, bar->by, bar->bw, bar->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
togglefullscreen(const Arg *arg) {
if (!selmon->sel)
return;
setfullscreen(selmon->sel, !selmon->sel->isfullscreen);
}
void
togglescratch(const Arg *arg)
{
Client *c;
unsigned int found = 0;
unsigned int scratchtag = SPTAG(arg->ui);
Arg sparg = {.v = scratchpads[arg->ui].cmd};
for (c = selmon->cl->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, selmon)) {
focus(c);
restack(selmon);
}
} else {
selmon->tagset[selmon->seltags] |= scratchtag;
spawn(&sparg);
}
}
void
toggletag(const Arg *arg)
{
Monitor *m;
unsigned int newtags;
if (!selmon->sel)
return;
newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
if (newtags) {
/* prevent adding tags that are in use on other monitors */
for (m = mons; m; m = m->next)
if (m != selmon && newtags & m->tagset[m->seltags])
return;
selmon->sel->tags = newtags;
focus(NULL);
arrange(selmon);
}
}
void
toggleview(const Arg *arg)
{
Monitor *m;
unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
if (newtagset) {
/* prevent displaying the same tags on multiple monitors */
for(m = mons; m; m = m->next)
if(m != selmon && newtagset & m->tagset[m->seltags])
return;
selmon->tagset[selmon->seltags] = newtagset;
attachclients(selmon);
arrange(selmon);
focus(NULL);
}
}
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);
} else if (showsystray && (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);
drawbarwin(systray->bar);
}
}
void
updatebars(void)
{
Bar *bar;
Monitor *m;
XSetWindowAttributes wa = {
.override_redirect = True,
#if BAR_ALPHA_PATCH
.background_pixel = 0,
.border_pixel = 0,
.colormap = cmap,
#else
.background_pixmap = ParentRelative,
#endif // BAR_ALPHA_PATCH
.event_mask = ButtonPressMask|ExposureMask
};
XClassHint ch = {"dwm", "dwm"};
for (m = mons; m; m = m->next) {
for (bar = m->bar; bar; bar = bar->next) {
if (!bar->win) {
#if BAR_ALPHA_PATCH
bar->win = XCreateWindow(dpy, root, bar->bx, bar->by, bar->bw, bar->bh, 0, depth,
InputOutput, visual,
CWOverrideRedirect|CWBackPixel|CWBorderPixel|CWColormap|CWEventMask, &wa);
#else
bar->win = XCreateWindow(dpy, root, bar->bx, bar->by, bar->bw, bar->bh, 0, DefaultDepth(dpy, screen),
CopyFromParent, DefaultVisual(dpy, screen),
CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
#endif // BAR_ALPHA_PATCH
XDefineCursor(dpy, bar->win, cursor[CurNormal]->cursor);
XMapRaised(dpy, bar->win);
XSetClassHint(dpy, bar->win, &ch);
}
}
}
}
void
updatebarpos(Monitor *m)
{
m->wy = m->my;
m->wh = m->mh;
int num_bars;
Bar *bar;
int y_pad = 0;
int x_pad = 0;
for (bar = m->bar; bar; bar = bar->next) {
bar->bx = m->mx + x_pad;
bar->bw = m->ww - 2 * x_pad;
bar->bh = bh;
}
if (!m->showbar) {
for (bar = m->bar; bar; bar = bar->next)
bar->by = -bh - y_pad;
return;
}
for (num_bars = 0, bar = m->bar; bar; bar = bar->next, num_bars++)
if (bar->topbar)
m->wy = m->my + bh + y_pad;
m->wh = m->wh - y_pad * num_bars - bh * num_bars;
for (bar = m->bar; bar; bar = bar->next)
bar->by = (bar->topbar ? m->wy - bh : m->wy + m->wh);
}
void
updateclientlist()
{
Client *c;
Monitor *m;
XDeleteProperty(dpy, root, netatom[NetClientList]);
for (m = mons; m; m = m->next)
for (c = m->cl->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();
attachclients(m->next);
}
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);
if (m == selmon)
selmon = mons;
for (c = m->cl->clients; c; c = c->next) {
dirty = True;
if (c->mon == m)
c->mon = selmon;
}
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
updatemotifhints(Client *c)
{
Atom real;
int format;
unsigned char *p = NULL;
unsigned long n, extra;
unsigned long *motif;
int width, height;
if (!decorhints)
return;
if (XGetWindowProperty(dpy, c->win, motifatom, 0L, 5L, False, motifatom,
&real, &format, &n, &extra, &p) == Success && p != NULL) {
motif = (unsigned long*)p;
if (motif[MWM_HINTS_FLAGS_FIELD] & MWM_HINTS_DECORATIONS) {
width = WIDTH(c);
height = HEIGHT(c);
if (motif[MWM_HINTS_DECORATIONS_FIELD] & MWM_DECOR_ALL ||
motif[MWM_HINTS_DECORATIONS_FIELD] & MWM_DECOR_BORDER ||
motif[MWM_HINTS_DECORATIONS_FIELD] & MWM_DECOR_TITLE)
c->bw = c->oldbw = borderpx;
else
c->bw = c->oldbw = 0;
resize(c, c->x, c->y, width - (2*c->bw), height - (2*c->bw), 0);
}
XFree(p);
}
}
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)
{
Monitor *m;
if (!gettextprop(root, XA_WM_NAME, rawstext, sizeof(rawstext))) {
strcpy(stext, "dwm-"VERSION);
estext[0] = '\0';
} else {
char *e = strchr(rawstext, statussep);
if (e) {
*e = '\0'; e++;
strncpy(rawestext, e, sizeof(estext) - 1);
copyvalidchars(estext, rawestext);
} else
estext[0] = '\0';
copyvalidchars(stext, rawstext);
}
for (m = mons; m; m = m->next)
drawbar(m);
}
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]);
if (state == netatom[NetWMFullscreen])
setfullscreen(c, 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)
{
Monitor *m;
unsigned int newtagset = selmon->tagset[selmon->seltags ^ 1];
if ((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags])
return;
/* swap tags when trying to display a tag from another monitor */
if (arg->ui & TAGMASK)
newtagset = arg->ui & TAGMASK;
for (m = mons; m; m = m->next)
if (m != selmon && newtagset & m->tagset[m->seltags]) {
/* prevent displaying all tags (MODKEY-0) when multiple monitors
* are connected */
if (newtagset & selmon->tagset[selmon->seltags])
return;
// TODO handle fullscreen clients if they do switch monitor (see https://raw.githubusercontent.com/bakkeby/patches/master/dwm/dwm-tagmonfixfs-6.3.diff for reference)
m->sel = selmon->sel;
m->seltags ^= 1;
m->tagset[m->seltags] = selmon->tagset[selmon->seltags];
attachclients(m);
arrange(m);
break;
}
selmon->seltags ^= 1; /* toggle sel tagset */
if (arg->ui & TAGMASK)
selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
attachclients(selmon);
arrange(selmon);
focus(NULL);
warp(selmon->sel);
}
void
warp(const Client *c)
{
int x, y;
if (!c) {
XWarpPointer(dpy, None, root, 0, 0, 0, 0, selmon->wx + selmon->ww/2, selmon->wy + selmon->wh/2);
return;
}
if (!getrootptr(&x, &y))
return;
if (x > c->x - c->bw &&
y > c->y - c->bw &&
x < c->x + c->w + c->bw*2 &&
y < c->y + c->h + c->bw*2)
return;
for (Monitor *m = mons; m; m = m->next)
for (Bar *bar = m->bar; bar; bar = bar->next)
if (x > bar->bx &&
x < bar->bx + bar->bw &&
y > bar->by &&
y < bar->by + bar->bh)
return;
XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w / 2, c->h / 2);
}
Client *
wintoclient(Window w)
{
Client *c;
Monitor *m;
for (m = mons; m; m = m->next)
for (c = m->cl->clients; c; c = c->next)
if (c->win == w)
return c;
return NULL;
}
Monitor *
wintomon(Window w)
{
int x, y;
Client *c;
Monitor *m;
Bar *bar;
if (w == root && getrootptr(&x, &y))
return recttomon(x, y, 1, 1);
for (m = mons; m; m = m->next)
for (bar = m->bar; bar; bar = bar->next)
if (w == bar->win)
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
xrdb(const Arg *arg)
{
loadxrdb();
int i;
for (i = 0; i < LENGTH(colors); i++)
scheme[i] = drw_scm_create(drw, colors[i], 3);
focus(NULL);
arrange(NULL);
}
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->cl->clients, selmon))
if (!c || !(c = nexttiled(c->next, selmon)))
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();
XrmInitialize();
loadxrdb();
setup();
#ifdef __OpenBSD__
if (pledge("stdio rpath proc exec", NULL) == -1)
die("pledge");
#endif /* __OpenBSD__ */
scan();
run();
cleanup();
XCloseDisplay(dpy);
return EXIT_SUCCESS;
}
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