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ldwm.c
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ldwm.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 ldwm 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/Xutil.h>
#ifdef XINERAMA
#include <X11/extensions/Xinerama.h>
#endif /* XINERAMA */
/* 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)->mx+(m)->mw) - MAX((x),(m)->mx)) \
* MAX(0, MIN((y)+(h),(m)->my+(m)->mh) - MAX((y),(m)->my)))
#define ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags]))
#define LENGTH(X) (sizeof X / sizeof X[0])
#define MOUSEMASK (BUTTONMASK|PointerMotionMask)
#define WIDTH(X) ((X)->w)
#define HEIGHT(X) ((X)->h)
#define TAGMASK ((1 << tags) - 1)
#define BROKEN ("broken")
#define MAX(A, B) ((A) > (B) ? (A) : (B))
#define MIN(A, B) ((A) < (B) ? (A) : (B))
/* enums */
enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
enum { NetSupported, NetWMName, NetWMState,
NetWMFullscreen, NetActiveWindow, NetWMWindowType,
NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
typedef struct Monitor Monitor;
typedef union {
int i;
unsigned int ui;
float f;
const void *v;
void (*lt)(Monitor *);
} Arg;
typedef struct {
unsigned int mask;
unsigned int button;
void (*func)(const Arg *arg);
const Arg arg;
} Button;
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;
unsigned int tags;
int isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
Client *next;
Client *snext;
Monitor *mon;
Window win;
};
typedef struct {
unsigned int mod;
KeySym keysym;
void (*func)(const Arg *);
const Arg arg;
} Key;
struct Monitor {
float mfact;
int nmaster;
int num;
int mx, my, mw, mh; /* screen size */
unsigned int seltags;
unsigned int tagset[2];
Client *clients;
Client *sel;
Client *stack;
Monitor *next;
void (*lt)(Monitor *);
};
typedef struct {
const char *class;
const char *instance;
const char *title;
unsigned int tags;
int isfloating;
int monitor;
} Rule;
/* function declarations */
static void applyrules(Client *c);
static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact);
static void arrange(Monitor *m);
static void arrangemon(Monitor *m);
static void attach(Client *c);
static void attachstack(Client *c);
static void buttonpress(XEvent *e);
static void checkotherwm(void);
static void cleanup(void);
static void cleanupmon(Monitor *mon);
static void clearurgent(Client *c);
static void clientmessage(XEvent *e);
static void configure(Client *c, int x, int y, int w, int h);
static Monitor *createmon(void);
static void destroynotify(XEvent *e);
static void detach(Client *c);
static void detachstack(Client *c);
static void die(const char *errstr, ...);
static Monitor *dirtomon(int dir);
static void *ecalloc(size_t nmemb, size_t size);
static void enternotify(XEvent *e);
static void focus(Client *c);
static void focusin(XEvent *e);
static void focusmon(const Arg *arg);
static void focusstack(const Arg *arg);
static int getrootptr(int *x, int *y);
static long getstate(Window w);
static void grabbuttons(Client *c, int focused);
static void grabkeys(void);
static void incnmaster(const Arg *arg);
static void keypress(XEvent *e);
static void killclient(const Arg *arg);
static void manage(Window w, XWindowAttributes *wa);
static void mappingnotify(XEvent *e);
static void maprequest(XEvent *e);
static void monocle(Monitor *m);
static void motionnotify(XEvent *e);
static void movemouse(const Arg *arg);
static Client *nexttiled(Client *c);
static void pop(Client *);
static void propertynotify(XEvent *e);
static void quit(const Arg *arg);
static Monitor *recttomon(int x, int y, int w, int h);
static void resize(Client *c, int x, int y, int w, int h, int interact);
static void resizemouse(const Arg *arg);
static void restack(Monitor *m);
static void run(void);
static void scan(void);
static int sendevent(Client *c, Atom proto);
static void sendmon(Client *c, Monitor *m);
static void setclientstate(Client *c, long state);
static void setfocus(Client *c);
static void setfullscreen(Client *c, int fullscreen);
static void setlayout(const Arg *arg);
static void setmfact(const Arg *arg);
static void setup(void);
static void shiftview(const Arg *arg);
static void showhide(Client *c);
static void sigchld(int unused);
static void spawn(const Arg *arg);
static void tag(const Arg *arg);
static void tagmon(const Arg *arg);
static void tile(Monitor *);
static void togglefloating(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 int updategeom(void);
static void updateclientlist(void);
static void updatenumlockmask(void);
static void updatesizehints(Client *c);
static void updatewindowtype(Client *c);
static void updatewmhints(Client *c);
static void view(const Arg *arg);
static Client *wintoclient(Window w);
static Monitor *wintomon(Window w);
static int xerror(Display *dpy, XErrorEvent *ee);
static int xerrordummy(Display *dpy, XErrorEvent *ee);
static int xerrorstart(Display *dpy, XErrorEvent *ee);
static void zoom(const Arg *arg);
/* variables */
static int screen;
static int sw, sh; /* X display screen geometry width, height */
static int (*xerrorxlib)(Display *, XErrorEvent *);
static unsigned int numlockmask = 0;
static void (*handler[LASTEvent]) (XEvent *) = {
[ButtonPress] = buttonpress,
[ClientMessage] = clientmessage,
[DestroyNotify] = destroynotify,
[EnterNotify] = enternotify,
[FocusIn] = focusin,
[KeyPress] = keypress,
[MappingNotify] = mappingnotify,
[MapRequest] = maprequest,
[MotionNotify] = motionnotify,
[PropertyNotify] = propertynotify,
[UnmapNotify] = unmapnotify
};
static Atom wmatom[WMLast], netatom[NetLast];
static int running = 1;
static Cursor cursor[CurLast];
static Display *dpy;
static Monitor *mons, *selmon;
static Window root;
/* configuration, allows nested code to access above variables */
#include "config.h"
/* function implementations */
void
applyrules(Client *c)
{
const char *class, *instance;
unsigned int i;
const Rule *r;
Monitor *m;
XClassHint ch = { NULL, NULL };
/* rule matching */
c->isfloating = 0;
c->tags = 0;
XGetClassHint(dpy, c->win, &ch);
class = ch.res_class ? ch.res_class : BROKEN;
instance = ch.res_name ? ch.res_name : BROKEN;
for (i = 0; i < LENGTH(rules); i++) {
r = &rules[i];
if ((!r->title || strstr(c->name, r->title))
&& (!r->class || strstr(class, r->class))
&& (!r->instance || strstr(instance, r->instance)))
{
c->isfloating = r->isfloating;
c->tags |= r->tags;
for (m = mons; m && m->num != r->monitor; m = m->next);
if (m)
c->mon = m;
}
}
if (ch.res_class)
XFree(ch.res_class);
if (ch.res_name)
XFree(ch.res_name);
c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
}
int
applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact)
{
int baseismin;
Monitor *m = c->mon;
/* set minimum possible */
*w = MAX(1, *w);
*h = MAX(1, *h);
if (interact) {
if (*x > sw)
*x = sw - WIDTH(c);
if (*y > sh)
*y = sh - HEIGHT(c);
if (*x + *w < 0)
*x = 0;
if (*y + *h < 0)
*y = 0;
} else {
if (*x >= m->mx + m->mw)
*x = m->mx + m->mw - WIDTH(c);
if (*y >= m->my + m->mh)
*y = m->my + m->mh - HEIGHT(c);
if (*x + *w <= m->mx)
*x = m->mx;
if (*y + *h <= m->my)
*y = m->my;
}
if (resizehints || c->isfloating || !c->mon->lt) {
/* 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)
{
if (m->lt)
m->lt(m);
}
void
attach(Client *c)
{
c->next = c->mon->clients;
c->mon->clients = c;
}
void
attachstack(Client *c)
{
c->snext = c->mon->stack;
c->mon->stack = c;
}
void
buttonpress(XEvent *e)
{
unsigned int i, isclient = 0;
Client *c;
Monitor *m;
XButtonPressedEvent *ev = &e->xbutton;
/* focus monitor if necessary */
if ((m = wintomon(ev->window)) && m != selmon) {
unfocus(selmon->sel, 1);
selmon = m;
focus(NULL);
}
if ((c = wintoclient(ev->window))) {
focus(c);
isclient = 1;
}
for (i = 0; i < LENGTH(buttons); i++)
if(isclient && buttons[i].func && buttons[i].button == ev->button
&& CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
buttons[i].func(&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};
Monitor *m;
size_t i;
view(&a);
selmon->lt = NULL;
for (m = mons; m; m = m->next)
while (m->stack)
unmanage(m->stack, 0);
XUngrabKey(dpy, AnyKey, AnyModifier, root);
while (mons)
cleanupmon(mons);
for (i = 0; i < CurLast; i++)
XFreeCursor(dpy, cursor[i]);
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);
if (m) m->next = mon->next;
}
free(mon);
}
void
clearurgent(Client *c)
{
XWMHints *wmh;
c->isurgent = 0;
if (!(wmh = XGetWMHints(dpy, c->win)))
return;
wmh->flags &= ~XUrgencyHint;
XSetWMHints(dpy, c->win, wmh);
XFree(wmh);
}
void
clientmessage(XEvent *e)
{
XClientMessageEvent *cme = &e->xclient;
Client *c = wintoclient(cme->window);
if (!c)
return;
if (cme->message_type == netatom[NetWMState]) {
if (cme->data.l[1] == netatom[NetWMFullscreen] || cme->data.l[2] == netatom[NetWMFullscreen])
setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD */
|| (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen)));
} else if (cme->message_type == netatom[NetActiveWindow]) {
if (!ISVISIBLE(c)) {
c->mon->seltags ^= 1;
c->mon->tagset[c->mon->seltags] = c->tags;
}
pop(c);
}
}
void
configure(Client *c, int x, int y, int w, int h)
{
XWindowChanges wc;
XConfigureEvent ce;
c->oldx = c->x; ce.x = c->x = wc.x = x;
c->oldy = c->y; ce.y = c->y = wc.y = y;
c->oldw = c->w; ce.width = c->w = wc.width = w;
c->oldh = c->h; ce.height = c->h = wc.height = h;
XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight, &wc);
ce.type = ConfigureNotify;
ce.display = dpy;
ce.event = ce.window = c->win;
ce.above = None;
ce.override_redirect = False;
XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
XSync(dpy, False);
}
Monitor *
createmon(void)
{
Monitor *m;
m = ecalloc(1, sizeof(Monitor));
m->tagset[0] = m->tagset[1] = 1;
m->mfact = mfact;
m->nmaster = nmaster;
m->lt = tile;
return m;
}
void
destroynotify(XEvent *e)
{
Client *c;
XDestroyWindowEvent *ev = &e->xdestroywindow;
if ((c = wintoclient(ev->window)))
unmanage(c, 1);
}
void
detach(Client *c)
{
Client **tc;
for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
*tc = c->next;
}
void
detachstack(Client *c)
{
Client **tc, *t;
for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext);
*tc = c->snext;
if (c == c->mon->sel) {
for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext);
c->mon->sel = t;
}
}
void
die(const char *errstr, ...) {
va_list ap;
va_start(ap, errstr);
vfprintf(stderr, errstr, ap);
va_end(ap);
exit(EXIT_FAILURE);
}
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 *
ecalloc(size_t nmemb, size_t size)
{
void *p;
if (!(p = calloc(nmemb, size)))
perror(NULL);
return p;
}
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
focus(Client *c)
{
if (!c || !ISVISIBLE(c))
for (c = selmon->stack; c && !ISVISIBLE(c); c = c->snext);
/* was if (selmon->sel) */
if (selmon->sel && selmon->sel != c)
unfocus(selmon->sel, 0);
if (c) {
if (c->mon != selmon)
selmon = c->mon;
if (c->isurgent)
clearurgent(c);
detachstack(c);
attachstack(c);
grabbuttons(c, 1);
setfocus(c);
} else {
XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
}
selmon->sel = c;
}
/* there are some broken focus acquiring clients */
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); /* s/1/0/ fixes input focus issues
in gedit and anjuta */
selmon = m;
focus(NULL);
}
void
focusstack(const Arg *arg)
{
Client *c = NULL, *i;
if (!selmon->sel)
return;
if (arg->i > 0) {
for (c = selmon->sel->next; c && !ISVISIBLE(c); c = c->next);
if (!c)
for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
} else {
for (i = selmon->clients; i != selmon->sel; i = i->next)
if (ISVISIBLE(i))
c = i;
if (!c)
for (; i; i = i->next)
if (ISVISIBLE(i))
c = i;
}
if (c) {
focus(c);
restack(selmon);
}
}
Atom
getatomprop(Client *c, Atom prop)
{
int di;
unsigned long dl;
unsigned char *p = NULL;
Atom da, atom = None;
if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM,
&da, &di, &dl, &dl, &p) == Success && p) {
atom = *(Atom *)p;
XFree(p);
}
return atom;
}
int
getrootptr(int *x, int *y)
{
int di;
unsigned int dui;
Window dummy;
return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
}
long
getstate(Window w)
{
int format;
long result = -1;
unsigned char *p = NULL;
unsigned long n, extra;
Atom real;
if (XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
&real, &format, &n, &extra, (unsigned char **)&p) != Success)
return -1;
if (n != 0)
result = *p;
XFree(p);
return result;
}
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) {
for (i = 0; i < LENGTH(buttons); i++)
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);
} else
XGrabButton(dpy, AnyButton, AnyModifier, 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, wmatom[WMDelete])) {
XGrabServer(dpy);
XSetErrorHandler(xerrordummy);
XSetCloseDownMode(dpy, DestroyAll);
XKillClient(dpy, selmon->sel->win);
XSync(dpy, False);
XSetErrorHandler(xerror);
XUngrabServer(dpy);
}
}
void
manage(Window w, XWindowAttributes *wa)
{
Client *c, *t = NULL;
Window trans = None;
c = ecalloc(1, sizeof(Client));
c->win = w;
if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
c->mon = t->mon;
c->tags = t->tags;
} else {
c->mon = selmon;
applyrules(c);
}
/* 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;
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);
updatewindowtype(c);
updatesizehints(c);
updatewmhints(c);
XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
grabbuttons(c, 0);
if (!c->isfloating)
c->isfloating = c->oldstate = trans != None || c->isfixed;
if (c->isfloating)
XRaiseWindow(dpy, c->win);
attach(c);
attachstack(c);
XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend,
(unsigned char *) &(c->win), 1);
XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
setclientstate(c, NormalState);
if (c->mon == selmon)
unfocus(selmon->sel, 0);
c->mon->sel = c;
arrange(c->mon);
XMapWindow(dpy, c->win);
focus(NULL);
}
void
mappingnotify(XEvent *e)
{
XMappingEvent *ev = &e->xmapping;
XRefreshKeyboardMapping(ev);
if (ev->request == MappingKeyboard)
grabkeys();
}
void
maprequest(XEvent *e)
{
static XWindowAttributes wa;
XMapRequestEvent *ev = &e->xmaprequest;
if (!XGetWindowAttributes(dpy, ev->window, &wa))
return;
if (wa.override_redirect)
return;
if (!wintoclient(ev->window))
manage(ev->window, &wa);
}
void
monocle(Monitor *m)
{
unsigned int n = 0;
Client *c;
for (c = m->clients; c; c = c->next)
if (ISVISIBLE(c))
n++;
for (c = nexttiled(m->clients); c; c = nexttiled(c->next))
resize(c, m->mx, m->my, m->mw, m->mh, 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], CurrentTime) != GrabSuccess)
return;
if (!getrootptr(&x, &y))
return;
do {
XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
switch(ev.type) {
case ConfigureRequest:
break;
case MapRequest:
handler[ev.type](&ev);
break;
case MotionNotify:
if ((ev.xmotion.time - lasttime) <= (1000 / 120))
continue;
lasttime = ev.xmotion.time;
nx = ocx + (ev.xmotion.x - x);
ny = ocy + (ev.xmotion.y - y);
if (nx >= selmon->mx && nx <= selmon->mx + selmon->mw
&& ny >= selmon->my && ny <= selmon->my + selmon->mh) {
if (abs(selmon->mx - nx) < snap)
nx = selmon->mx;
else if (abs((selmon->mx + selmon->mw) - (nx + WIDTH(c))) < snap)
nx = selmon->mx + selmon->mw - WIDTH(c);
if (abs(selmon->my - ny) < snap)
ny = selmon->my;
else if (abs((selmon->my + selmon->mh) - (ny + HEIGHT(c))) < snap)
ny = selmon->my + selmon->mh - HEIGHT(c);
if (!c->isfloating && selmon->lt
&& (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
togglefloating(NULL);
}
if (!selmon->lt || c->isfloating)
resize(c, nx, ny, c->w, c->h, 1);
break;
}
} while (ev.type != ButtonRelease);
XUngrabPointer(dpy, CurrentTime);
if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
sendmon(c, m);
selmon = m;
focus(NULL);
}
}
Client *
nexttiled(Client *c)
{
for (; c && (c->isfloating || !ISVISIBLE(c)); c = c->next);
return c;
}
void
pop(Client *c)
{
detach(c);
attach(c);
focus(c);
arrange(c->mon);
}
void
propertynotify(XEvent *e)
{
Client *c;
Window trans;
XPropertyEvent *ev = &e->xproperty;
if (ev->state == PropertyDelete)
return; /* ignore */