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dwm.c
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/* See LICENSE file for copyright and license details.
*
* dynamic window manager is designed like any other X client as well. It is
* driven through handling X events. In contrast to other X clients, a window
* manager selects for SubstructureRedirectMask on the root window, to receive
* events about window (dis-)appearance. Only one X connection at a time is
* allowed to select for this event mask.
*
* The event handlers of dwm are organized in an array which is accessed
* whenever a new event has been fetched. This allows event dispatching
* in O(1) time.
*
* Each child of the root window is called a client, except windows which have
* set the override_redirect flag. Clients are organized in a linked client
* list on a view. Each monitor has 9 views, where each view has its own layout
* method. The focus history is remembered through a stack list on each view.
* Each client contains an integer to indicate the view in which it resides.
*
* Keys are organized as arrays and defined in config.h.
*
* To understand everything else, start reading main().
*/
#include <errno.h>
#include <locale.h>
#include <stdarg.h>
#include <signal.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))
#define INRECT(X,Y,RX,RY,RW,RH) ((X) >= (RX) && (X) < (RX) + (RW) && (Y) >= (RY) && (Y) < (RY) + (RH))
#define ISVISIBLE(C) ( C->view == C->mon->selview )
#define LENGTH(X) ( sizeof( X ) / sizeof( X[ 0 ] ) )
#define MAX(A, B) ((A) > (B) ? (A) : (B))
#define MIN(A, B) ((A) < (B) ? (A) : (B))
#define MOUSEMASK (BUTTONMASK|PointerMotionMask)
#define WIDTH(X) ((X)->w + 2 * (X)->bw)
#define HEIGHT(X) ((X)->h + 2 * (X)->bw)
#define TEXTW(X) (textnw(X, strlen(X)) + dc.font.height)
#define SELVIEW(M) (M->views[ M->selview ])
#define NUMVIEWS 9
/* enums */
enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
enum { ColBorder, ColFG, ColBG, ColLast }; /* color */
enum { NetSupported, NetWMName, NetWMState,
NetWMFullscreen, NetLast }; /* EWMH atoms */
enum { WMProtocols, WMDelete, WMState, WMLast }; /* default atoms */
enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
typedef union {
int i;
unsigned int ui;
float f;
const void *v;
} Arg;
typedef struct {
unsigned int click;
unsigned int mask;
unsigned int button;
void (*func)(const Arg *arg);
const Arg arg;
} Button;
typedef struct {
const char *class;
unsigned int view; // 0 for don't mind
Bool isfloating;
} Rule;
typedef struct Monitor Monitor;
typedef struct Client Client;
struct Client {
char name[256];
float mina, maxa;
int x, y, w, h;
int oldx, oldy, oldw, oldh;
int basew, baseh, incw, inch, maxw, maxh, minw, minh;
int bw, oldbw;
Bool isfixed, isfloating, isurgent, oldstate;
Client *next;
Client *snext;
Monitor *mon;
unsigned int view;
Window win;
};
typedef struct {
int x, y, w, h;
unsigned long norm[ColLast];
unsigned long sel[ColLast];
Drawable drawable;
GC gc;
struct {
int ascent;
int descent;
int height;
XFontSet set;
XFontStruct *xfont;
} font;
} DC; /* draw context */
typedef struct {
unsigned int mod;
KeySym keysym;
void (*func)(const Arg *);
const Arg arg;
} Key;
typedef struct {
const char *symbol;
void (*arrange)(Monitor *);
} Layout;
typedef struct {
unsigned int nmaster;
float mfact;
Client *clients;
Client *sel;
Client *stack;
const Layout *lt;
} View;
struct Monitor {
char ltsymbol[16];
int num;
int by; /* bar geometry */
int mx, my, mw, mh; /* screen size */
int wx, wy, ww, wh; /* window area */
Bool showbar;
Bool topbar;
Monitor *next;
Window barwin;
unsigned int selview;
View views[ NUMVIEWS ];
};
/* function declarations */
static void applyrules( Client *c );
static Bool applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact);
static void arrange(Monitor *const m);
static void arrangemon( Monitor *const 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);
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 void die(const char *errstr, ...);
static Monitor *dirtomon(int dir);
static void drawbar(Monitor *m);
static void drawbars(void);
static void drawsquare(Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]);
static void drawtext(const char *text, unsigned long col[ColLast], Bool invert);
static void enternotify( XEvent *e );
static void expose(XEvent *e);
static void focus(Client *c);
static void focusin( XEvent *e );
static void focusmon( const Arg *arg );
static void focusstack(const Arg *arg);
static unsigned long getcolor(const char *colstr);
static Bool getrootptr(int *x, int *y);
static long getstate(Window w);
static Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
static void grabbuttons(Client *c, Bool focused);
static void grabkeys(void);
static Bool hasurgentclient( const View *const v );
static void incmaster(const Arg *arg);
static void initfont(const char *fontstr);
static Bool isprotodel(Client *c);
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 mirrortile( Monitor *const m );
static void monocle( Monitor *const m );
static void movemouse( const Arg *arg );
static void movestack( const Arg *arg );
static void movetomon( const Arg *arg );
static void movetoview(const Arg *arg);
static Client *nexttiled(Client *c);
static Monitor *ptrtomon(int x, int y);
static Client *prevclient( Client *c, Client *head );
static void propertynotify(XEvent *e);
static void quit(const Arg *arg);
static void resize(Client *c, int x, int y, int w, int h, Bool interact);
static void resizeclient(Client *c, int x, int y, int w, int h);
static void resizemouse( const Arg *arg );
static void restack( Monitor *const m );
static void run(void);
static void scan(void);
static void sendmon( Client *c, Monitor *m );
static void setclientstate(Client *c, long state);
static void setlayout( const Arg *arg );
static void setmfact(const Arg *arg);
static void setup(void);
static void showhide(Client *c);
static void sigchld(int unused);
static void spawn(const Arg *arg);
static int textnw(const char *text, unsigned int len);
static void tile(Monitor *);
static void togglebar(const Arg *arg);
static void togglefloating( const Arg *arg );
static void unfocus(Client *c, Bool setfocus);
static void unmanage( Client *c, Bool destroyed );
static void unmapnotify(XEvent *e);
static Bool updategeom(void);
static void updatebarpos(Monitor *m);
static void updatebars(void);
static void updatenumlockmask(void);
static void updatesizehints(Client *c);
static void updatestatus(void);
static void updatetitle(Client *c);
static void updatewmhints( Client *c );
static void view(const Arg *arg);
static Client *wintoclient( Window w );
static Monitor *wintomon(Window w);
static int xerror(Display *dpy, XErrorEvent *ee);
static int xerrordummy(Display *dpy, XErrorEvent *ee);
static int xerrorstart(Display *dpy, XErrorEvent *ee);
static void zoom(const Arg *arg);
/* variables */
static const char broken[] = "broken";
static char stext[256];
static int screen;
static int sw, sh; /* X display screen geometry width, height */
static int bh, blw = 0; /* bar geometry */
static int (*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,
[PropertyNotify] = propertynotify,
[UnmapNotify] = unmapnotify
};
static Atom wmatom[WMLast], netatom[NetLast];
static Bool otherwm;
static Bool running = True;
static Cursor cursor[CurLast];
static Display *dpy;
static DC dc;
static Monitor *mons = NULL, *selmon = NULL;
static Window root;
/* configuration, allows nested code to access above variables */
#include "config.h"
/* function implementations */
void
applyrules( Client *c ) {
const char *class;
unsigned int i;
const Rule *r;
XClassHint ch = { 0 };
/* rule matching */
if ( XGetClassHint( dpy, c->win, &ch ) ) {
class = ch.res_class ? ch.res_class : broken;
for ( i = 0 ; i < LENGTH( rules ) ; i++ ) {
r = &rules[ i ];
if ( !r->class || strstr( class, r->class ) ) {
c->isfloating = r->isfloating;
if ( 0 != r->view )
c->view = r->view - 1;
}
}
if ( ch.res_class )
XFree( ch.res_class );
if ( ch.res_name )
XFree( ch.res_name );
}
}
Bool
applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact) {
Bool 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->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 + 2 * c->bw < m->mx)
*x = m->mx;
if(*y + *h + 2 * c->bw < m->my)
*y = m->my;
}
if(*h < bh)
*h = bh;
if(*w < bh)
*w = bh;
if(resizehints || c->isfloating) {
/* 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 += c->basew;
*h += c->baseh;
*w = MAX(*w, c->minw);
*h = MAX(*h, 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 ) {
int i;
if ( m )
for ( i = 0 ; i < NUMVIEWS ; i++ )
showhide( m->views[ i ].stack );
else for( m = mons ; m ; m = m->next )
for ( i = 0 ; i < NUMVIEWS ; i++ )
showhide( m->views[ i ].stack );
focus( NULL );
if ( m )
arrangemon( m );
else for( m = mons ; m ; m = m->next )
arrangemon( m );
}
void
arrangemon( Monitor *const m ) {
strncpy( m->ltsymbol, SELVIEW( m ).lt->symbol, sizeof( m->ltsymbol ) );
if ( SELVIEW( m ).lt->arrange )
SELVIEW( m ).lt->arrange( m );
restack( m );
}
void
attach(Client *c) {
c->next = c->mon->views[ c->view ].clients;
c->mon->views[ c->view ].clients = c;
}
void
attachstack(Client *c) {
c->snext = c->mon->views[ c->view ].stack;
c->mon->views[ c->view ].stack = c;
}
void
buttonpress( XEvent *e ) {
unsigned int i, x, click;
Arg arg = {0};
Client *c;
Monitor *m;
XButtonPressedEvent *ev = &e->xbutton;
click = ClkRootWin;
/* focus monitor if necessary */
if ( ( m = wintomon( ev->window ) ) && m != selmon ) {
unfocus( SELVIEW( selmon ).sel, True );
selmon = m;
focus( NULL );
}
if ( ev->window == selmon->barwin ) {
i = x = 0;
do {
x += TEXTW( tags[ i ] );
} while( ev->x >= x && ++i < NUMVIEWS );
if ( i < NUMVIEWS ) {
click = ClkTagBar;
arg.ui = i;
}
else if ( ev->x < x + blw )
click = ClkLtSymbol;
else if ( ev->x > selmon->wx + selmon->ww - TEXTW( stext ) )
click = ClkStatusText;
else
click = ClkWinTitle;
}
else if ( ( c = wintoclient( ev->window ) ) ) {
focus( c );
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) {
otherwm = False;
xerrorxlib = XSetErrorHandler(xerrorstart);
/* this causes an error if some other window manager is running */
XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
XSync(dpy, False);
if(otherwm)
die("dwm: another window manager is already running\n");
XSetErrorHandler(xerror);
XSync(dpy, False);
}
void
cleanup(void) {
Monitor *m;
int i;
for ( m = mons ; m ; m = m->next )
for ( i = 0 ; i < NUMVIEWS ; i++ )
while ( m->views[ i ].clients )
unmanage( m->views[ i ].clients, False );
if ( dc.font.set )
XFreeFontSet( dpy, dc.font.set );
else
XFreeFont( dpy, dc.font.xfont );
XUngrabKey( dpy, AnyKey, AnyModifier, root );
XFreePixmap( dpy, dc.drawable );
XFreeGC( dpy, dc.gc );
XFreeCursor( dpy, cursor[ CurNormal ] );
XFreeCursor( dpy, cursor[ CurResize ] );
XFreeCursor( dpy, cursor[ CurMove ] );
while ( mons )
cleanupmon( mons );
XSync( dpy, False );
XSetInputFocus( dpy, PointerRoot, RevertToPointerRoot, CurrentTime );
}
void
cleanupmon(Monitor *mon) {
Monitor *m;
if(mon == mons)
mons = mons->next;
else {
for(m = mons; m && m->next != mon; m = m->next);
m->next = mon->next;
}
XUnmapWindow(dpy, mon->barwin);
XDestroyWindow(dpy, mon->barwin);
free(mon);
}
void
clearurgent(Client *c) {
XWMHints *wmh;
c->isurgent = False;
if(!(wmh = XGetWMHints(dpy, c->win)))
return;
wmh->flags &= ~XUrgencyHint;
XSetWMHints(dpy, c->win, wmh);
XFree(wmh);
}
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;
XConfigureEvent *ev = &e->xconfigure;
if(ev->window == root) {
sw = ev->width;
sh = ev->height;
if(updategeom()) {
if(dc.drawable != 0)
XFreePixmap(dpy, dc.drawable);
dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
updatebars();
for(m = mons; m; m = m->next)
XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
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 || !SELVIEW( selmon ).lt->arrange ) {
m = c->mon;
if ( ev->value_mask & CWX )
c->x = m->mx + ev->x;
if ( ev->value_mask & CWY )
c->y = m->my + ev->y;
if ( ev->value_mask & CWWidth )
c->w = ev->width;
if ( ev->value_mask & CWHeight )
c->h = ev->height;
if ( ( c->x + c->w ) > m->mx + m->mw && c->isfloating )
c->x = m->mx + ( m->mw / 2 - c->w / 2 ); /* center in x direction */
if ( ( c->y + c->h ) > m->my + m->mh && c->isfloating )
c->y = m->my + ( m->mh / 2 - c->h / 2 ); /* center in y direction */
if ( ( ev->value_mask & ( CWX | CWY ) ) && !( ev->value_mask & ( CWWidth | CWHeight ) ) )
configure( c );
if ( ISVISIBLE( c ) )
XMoveResizeWindow( dpy, c->win, c->x, c->y, c->w, c->h );
}
else
configure( c );
}
else {
wc.x = ev->x;
wc.y = ev->y;
wc.width = ev->width;
wc.height = ev->height;
wc.border_width = ev->border_width;
wc.sibling = ev->above;
wc.stack_mode = ev->detail;
XConfigureWindow( dpy, ev->window, ev->value_mask, &wc );
}
XSync( dpy, False );
}
Monitor *
createmon(void) {
Monitor *m;
int i;
if ( !( m = ( Monitor * ) calloc( 1, sizeof( Monitor ) ) ) ) // use calloc instead of malloc because calloc sets allocated memory to 0.
die( "fatal: could not calloc() %u bytes\n", sizeof( Monitor ) );
m->showbar = showbar;
m->topbar = topbar;
strncpy( m->ltsymbol, layouts[ 0 ].symbol, sizeof( m->ltsymbol ) );
for ( i = 0 ; i < NUMVIEWS ; i++ ) {
m->views[ i ].nmaster = 1;
m->views[ i ].mfact = mfact;
m->views[ i ].lt = &layouts[ 0 ];
}
return m;
}
void
destroynotify(XEvent *e) {
Client *c;
XDestroyWindowEvent *ev = &e->xdestroywindow;
if((c = wintoclient(ev->window)))
unmanage(c, True);
}
void
detach( Client *c ) {
Client **tc;
for ( tc = &c->mon->views[ c->view ].clients ; *tc != c ; tc = &( *tc )->next );
*tc = c->next;
}
void
detachstack( Client *c ) {
Client **tc, *t;
for ( tc = &c->mon->views[ c->view ].stack ; *tc != c ; tc = &( *tc )->snext );
*tc = c->snext;
if ( c == c->mon->views[ c->view ].sel ) {
for ( t = c->mon->views[ c->view ].stack ; t && !ISVISIBLE( t ) ; t = t->snext );
c->mon->views[ c->view ].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
drawbar(Monitor *m) {
int x;
Bool occ, urg;
unsigned int i;
unsigned long *col;
// view tags
dc.x = 0;
for ( i = 0 ; i < NUMVIEWS ; i++ ) {
dc.w = TEXTW( tags[ i ] );
col = ( i == m->selview ) ? dc.sel : dc.norm;
occ = ( NULL != m->views[ i ].clients );
urg = hasurgentclient( &m->views[ i ] );
drawtext( tags[ i ], col, urg );
drawsquare( m == selmon && m->views[ i ].sel && i == m->selview,
occ, urg, col );
dc.x += dc.w;
}
// layout name of selected view
dc.w = blw = TEXTW( m->ltsymbol );
drawtext( m->ltsymbol, dc.norm, False );
dc.x += dc.w;
// status
x = dc.x;
if ( m == selmon ) { /* status is only drawn on selected monitor */
dc.w = TEXTW( stext );
dc.x = m->ww - dc.w;
if ( !( x <= dc.x ) ) {
dc.x = x;
dc.w = m->ww - x;
}
drawtext( stext, dc.norm, False );
}
else
dc.x = m->ww;
// name of selected client of selected view
if ( ( dc.w = dc.x - x ) > bh ) {
dc.x = x;
if ( SELVIEW( m ).sel ) {
col = ( m == selmon ) ? dc.sel : dc.norm;
drawtext( SELVIEW( m ).sel->name, col, False );
drawsquare( SELVIEW( m ).sel->isfixed, SELVIEW( m ).sel->isfloating, False, col );
}
else
drawtext( NULL, dc.norm, False );
}
XCopyArea( dpy, dc.drawable, m->barwin, dc.gc, 0, 0, m->ww, bh, 0, 0 );
XSync( dpy, False );
}
void
drawbars(void) {
Monitor *m;
for ( m = mons ; m ; m = m->next )
drawbar( m );
}
void
drawsquare(Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]) {
int x;
XGCValues gcv;
XRectangle r = { dc.x, dc.y, dc.w, dc.h };
gcv.foreground = col[invert ? ColBG : ColFG];
XChangeGC(dpy, dc.gc, GCForeground, &gcv);
x = (dc.font.ascent + dc.font.descent + 2) / 4;
r.x = dc.x + 1;
r.y = dc.y + 1;
if(filled) {
r.width = r.height = x + 1;
XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
}
else if(empty) {
r.width = r.height = x;
XDrawRectangles(dpy, dc.drawable, dc.gc, &r, 1);
}
}
void
drawtext(const char *text, unsigned long col[ColLast], Bool invert) {
char buf[256];
int i, x, y, h, len, olen;
XRectangle r = { dc.x, dc.y, dc.w, dc.h };
XSetForeground(dpy, dc.gc, col[invert ? ColFG : ColBG]);
XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
if(!text)
return;
olen = strlen(text);
h = dc.font.ascent + dc.font.descent;
y = dc.y + (dc.h / 2) - (h / 2) + dc.font.ascent;
x = dc.x + (h / 2);
/* shorten text if necessary */
for(len = MIN(olen, sizeof( buf )); len && textnw(text, len) > dc.w - h; len--);
if(!len)
return;
memcpy(buf, text, len);
if(len < olen)
for(i = len; i && i > len - 3; buf[--i] = '.');
XSetForeground(dpy, dc.gc, col[invert ? ColBG : ColFG]);
if(dc.font.set)
XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len);
else
XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len);
}
void
enternotify( XEvent *e ) {
Client *c;
Monitor *m;
XCrossingEvent *ev = &e->xcrossing;
if ( ( ev->window == root )
|| ( ev->mode == NotifyNormal && ev->detail != NotifyInferior ) ) {
m = wintomon( ev->window );
if ( m && m != selmon ) {
unfocus( SELVIEW( selmon ).sel, True );
selmon = m;
}
c = wintoclient( ev->window );
focus( c );
}
}
void
expose(XEvent *e) {
Monitor *m;
XExposeEvent *ev = &e->xexpose;
if(ev->count == 0 && (m = wintomon(ev->window)))
drawbar(m);
}
void
focus( Client *c ) {
if ( !( c && ISVISIBLE( c ) ) )
c = SELVIEW( selmon ).stack;
if ( SELVIEW( selmon ).sel && SELVIEW( selmon ).sel != c )
unfocus( SELVIEW( selmon ).sel, False );
if ( c ) {
if ( c->mon != selmon )
selmon = c->mon;
if ( c->isurgent )
clearurgent( c );
detachstack( c );
attachstack( c );
grabbuttons( c, True );
XSetWindowBorder( dpy, c->win, dc.sel[ ColBorder ] );
XSetInputFocus( dpy, c->win, RevertToPointerRoot, CurrentTime );
}
else
XSetInputFocus( dpy, root, RevertToPointerRoot, CurrentTime );
SELVIEW( selmon ).sel = c;
drawbars();
}
void
focusin( XEvent *e ) { /* XXX: there are some broken focus acquiring clients */
const XFocusChangeEvent *const ev = &e->xfocus;
if ( SELVIEW( selmon ).sel && SELVIEW( selmon ).sel->win != ev->window )
XSetInputFocus( dpy, SELVIEW( selmon ).sel->win, RevertToPointerRoot, CurrentTime );
}
void
focusmon( const Arg *arg ) {
Monitor *m;
if ( ( m = dirtomon( arg->i ) ) != selmon ) {
unfocus( SELVIEW( selmon ).sel, True );
selmon = m;
focus( NULL );
}
}
void
focusstack(const Arg *arg) {
Client *c = NULL, *i;
if ( SELVIEW( selmon ).sel ) {
if ( arg->i > 0 ) {
c = SELVIEW( selmon ).sel->next;
if ( !c )
c = SELVIEW( selmon ).clients;
}
else {
for ( i = SELVIEW( selmon ).clients ; i != SELVIEW( selmon ).sel ; i = i->next )
c = i;
if ( !c )
for ( ; i ; i = i->next )
c = i;
}
if ( c ) {
focus( c );
restack( selmon );
}
}
}
unsigned long
getcolor(const char *colstr) {
Colormap cmap = DefaultColormap(dpy, screen);
XColor color;
if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color))
die("error, cannot allocate color '%s'\n", colstr);
return color.pixel;
}
Bool
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;
}
Bool
gettextprop(Window w, Atom atom, char *text, unsigned int size) {
char **list = NULL;
int n;
XTextProperty name;
if(!text || size == 0)
return False;
text[0] = '\0';
XGetTextProperty(dpy, w, &name, atom);
if(!name.nitems)
return False;
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 True;
}
void
grabbuttons(Client *c, Bool 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++)
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);
}
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);
}
}
}
Bool
hasurgentclient( const View *const v ) {
const Client *c;
for ( c = v->clients ; c ; c = c->next )
if ( c->isurgent )
return True;