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       dwm-systray-20230922-9f88553.diff (23596B)
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            1 diff --git a/config.def.h b/config.def.h
            2 index 9efa774..fed4fb9 100644
            3 --- a/config.def.h
            4 +++ b/config.def.h
            5 @@ -3,6 +3,11 @@
            6  /* appearance */
            7  static const unsigned int borderpx  = 1;        /* border pixel of windows */
            8  static const unsigned int snap      = 32;       /* snap pixel */
            9 +static const unsigned int systraypinning = 0;   /* 0: sloppy systray follows selected monitor, >0: pin systray to monitor X */
           10 +static const unsigned int systrayonleft = 0;    /* 0: systray in the right corner, >0: systray on left of status text */
           11 +static const unsigned int systrayspacing = 2;   /* systray spacing */
           12 +static const int systraypinningfailfirst = 1;   /* 1: if pinning fails, display systray on the first monitor, False: display systray on the last monitor*/
           13 +static const int showsystray        = 1;        /* 0 means no systray */
           14  static const int showbar            = 1;        /* 0 means no bar */
           15  static const int topbar             = 1;        /* 0 means bottom bar */
           16  static const char *fonts[]          = { "monospace:size=10" };
           17 diff --git a/dwm.c b/dwm.c
           18 index f1d86b2..f9e7e4a 100644
           19 --- a/dwm.c
           20 +++ b/dwm.c
           21 @@ -57,12 +57,27 @@
           22  #define TAGMASK                 ((1 << LENGTH(tags)) - 1)
           23  #define TEXTW(X)                (drw_fontset_getwidth(drw, (X)) + lrpad)
           24  
           25 +#define SYSTEM_TRAY_REQUEST_DOCK    0
           26 +/* XEMBED messages */
           27 +#define XEMBED_EMBEDDED_NOTIFY      0
           28 +#define XEMBED_WINDOW_ACTIVATE      1
           29 +#define XEMBED_FOCUS_IN             4
           30 +#define XEMBED_MODALITY_ON         10
           31 +#define XEMBED_MAPPED              (1 << 0)
           32 +#define XEMBED_WINDOW_ACTIVATE      1
           33 +#define XEMBED_WINDOW_DEACTIVATE    2
           34 +#define VERSION_MAJOR               0
           35 +#define VERSION_MINOR               0
           36 +#define XEMBED_EMBEDDED_VERSION (VERSION_MAJOR << 16) | VERSION_MINOR
           37 +
           38  /* enums */
           39  enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
           40  enum { SchemeNorm, SchemeSel }; /* color schemes */
           41  enum { NetSupported, NetWMName, NetWMState, NetWMCheck,
           42 +       NetSystemTray, NetSystemTrayOP, NetSystemTrayOrientation, NetSystemTrayOrientationHorz,
           43         NetWMFullscreen, NetActiveWindow, NetWMWindowType,
           44         NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
           45 +enum { Manager, Xembed, XembedInfo, XLast }; /* Xembed atoms */
           46  enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
           47  enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
           48         ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
           49 @@ -141,6 +156,12 @@ typedef struct {
           50          int monitor;
           51  } Rule;
           52  
           53 +typedef struct Systray   Systray;
           54 +struct Systray {
           55 +        Window win;
           56 +        Client *icons;
           57 +};
           58 +
           59  /* function declarations */
           60  static void applyrules(Client *c);
           61  static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact);
           62 @@ -172,6 +193,7 @@ static void focusstack(const Arg *arg);
           63  static Atom getatomprop(Client *c, Atom prop);
           64  static int getrootptr(int *x, int *y);
           65  static long getstate(Window w);
           66 +static unsigned int getsystraywidth();
           67  static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
           68  static void grabbuttons(Client *c, int focused);
           69  static void grabkeys(void);
           70 @@ -189,13 +211,16 @@ static void pop(Client *c);
           71  static void propertynotify(XEvent *e);
           72  static void quit(const Arg *arg);
           73  static Monitor *recttomon(int x, int y, int w, int h);
           74 +static void removesystrayicon(Client *i);
           75  static void resize(Client *c, int x, int y, int w, int h, int interact);
           76 +static void resizebarwin(Monitor *m);
           77  static void resizeclient(Client *c, int x, int y, int w, int h);
           78  static void resizemouse(const Arg *arg);
           79 +static void resizerequest(XEvent *e);
           80  static void restack(Monitor *m);
           81  static void run(void);
           82  static void scan(void);
           83 -static int sendevent(Client *c, Atom proto);
           84 +static int sendevent(Window w, Atom proto, int m, long d0, long d1, long d2, long d3, long d4);
           85  static void sendmon(Client *c, Monitor *m);
           86  static void setclientstate(Client *c, long state);
           87  static void setfocus(Client *c);
           88 @@ -206,6 +231,7 @@ static void setup(void);
           89  static void seturgent(Client *c, int urg);
           90  static void showhide(Client *c);
           91  static void spawn(const Arg *arg);
           92 +static Monitor *systraytomon(Monitor *m);
           93  static void tag(const Arg *arg);
           94  static void tagmon(const Arg *arg);
           95  static void tile(Monitor *m);
           96 @@ -223,18 +249,23 @@ static int updategeom(void);
           97  static void updatenumlockmask(void);
           98  static void updatesizehints(Client *c);
           99  static void updatestatus(void);
          100 +static void updatesystray(void);
          101 +static void updatesystrayicongeom(Client *i, int w, int h);
          102 +static void updatesystrayiconstate(Client *i, XPropertyEvent *ev);
          103  static void updatetitle(Client *c);
          104  static void updatewindowtype(Client *c);
          105  static void updatewmhints(Client *c);
          106  static void view(const Arg *arg);
          107  static Client *wintoclient(Window w);
          108  static Monitor *wintomon(Window w);
          109 +static Client *wintosystrayicon(Window w);
          110  static int xerror(Display *dpy, XErrorEvent *ee);
          111  static int xerrordummy(Display *dpy, XErrorEvent *ee);
          112  static int xerrorstart(Display *dpy, XErrorEvent *ee);
          113  static void zoom(const Arg *arg);
          114  
          115  /* variables */
          116 +static Systray *systray = NULL;
          117  static const char broken[] = "broken";
          118  static char stext[256];
          119  static int screen;
          120 @@ -257,9 +288,10 @@ static void (*handler[LASTEvent]) (XEvent *) = {
          121          [MapRequest] = maprequest,
          122          [MotionNotify] = motionnotify,
          123          [PropertyNotify] = propertynotify,
          124 +        [ResizeRequest] = resizerequest,
          125          [UnmapNotify] = unmapnotify
          126  };
          127 -static Atom wmatom[WMLast], netatom[NetLast];
          128 +static Atom wmatom[WMLast], netatom[NetLast], xatom[XLast];
          129  static int running = 1;
          130  static Cur *cursor[CurLast];
          131  static Clr **scheme;
          132 @@ -441,7 +473,7 @@ buttonpress(XEvent *e)
          133                          arg.ui = 1 << i;
          134                  } else if (ev->x < x + TEXTW(selmon->ltsymbol))
          135                          click = ClkLtSymbol;
          136 -                else if (ev->x > selmon->ww - (int)TEXTW(stext))
          137 +                else if (ev->x > selmon->ww - (int)TEXTW(stext) - getsystraywidth())
          138                          click = ClkStatusText;
          139                  else
          140                          click = ClkWinTitle;
          141 @@ -484,6 +516,13 @@ cleanup(void)
          142          XUngrabKey(dpy, AnyKey, AnyModifier, root);
          143          while (mons)
          144                  cleanupmon(mons);
          145 +
          146 +        if (showsystray) {
          147 +                XUnmapWindow(dpy, systray->win);
          148 +                XDestroyWindow(dpy, systray->win);
          149 +                free(systray);
          150 +        }
          151 +
          152          for (i = 0; i < CurLast; i++)
          153                  drw_cur_free(drw, cursor[i]);
          154          for (i = 0; i < LENGTH(colors); i++)
          155 @@ -515,9 +554,58 @@ cleanupmon(Monitor *mon)
          156  void
          157  clientmessage(XEvent *e)
          158  {
          159 +        XWindowAttributes wa;
          160 +        XSetWindowAttributes swa;
          161          XClientMessageEvent *cme = &e->xclient;
          162          Client *c = wintoclient(cme->window);
          163  
          164 +        if (showsystray && cme->window == systray->win && cme->message_type == netatom[NetSystemTrayOP]) {
          165 +                /* add systray icons */
          166 +                if (cme->data.l[1] == SYSTEM_TRAY_REQUEST_DOCK) {
          167 +                        if (!(c = (Client *)calloc(1, sizeof(Client))))
          168 +                                die("fatal: could not malloc() %u bytes\n", sizeof(Client));
          169 +                        if (!(c->win = cme->data.l[2])) {
          170 +                                free(c);
          171 +                                return;
          172 +                        }
          173 +                        c->mon = selmon;
          174 +                        c->next = systray->icons;
          175 +                        systray->icons = c;
          176 +                        if (!XGetWindowAttributes(dpy, c->win, &wa)) {
          177 +                                /* use sane defaults */
          178 +                                wa.width = bh;
          179 +                                wa.height = bh;
          180 +                                wa.border_width = 0;
          181 +                        }
          182 +                        c->x = c->oldx = c->y = c->oldy = 0;
          183 +                        c->w = c->oldw = wa.width;
          184 +                        c->h = c->oldh = wa.height;
          185 +                        c->oldbw = wa.border_width;
          186 +                        c->bw = 0;
          187 +                        c->isfloating = True;
          188 +                        /* reuse tags field as mapped status */
          189 +                        c->tags = 1;
          190 +                        updatesizehints(c);
          191 +                        updatesystrayicongeom(c, wa.width, wa.height);
          192 +                        XAddToSaveSet(dpy, c->win);
          193 +                        XSelectInput(dpy, c->win, StructureNotifyMask | PropertyChangeMask | ResizeRedirectMask);
          194 +                        XReparentWindow(dpy, c->win, systray->win, 0, 0);
          195 +                        /* use parents background color */
          196 +                        swa.background_pixel  = scheme[SchemeNorm][ColBg].pixel;
          197 +                        XChangeWindowAttributes(dpy, c->win, CWBackPixel, &swa);
          198 +                        sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_EMBEDDED_NOTIFY, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
          199 +                        /* FIXME not sure if I have to send these events, too */
          200 +                        sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_FOCUS_IN, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
          201 +                        sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_WINDOW_ACTIVATE, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
          202 +                        sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_MODALITY_ON, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
          203 +                        XSync(dpy, False);
          204 +                        resizebarwin(selmon);
          205 +                        updatesystray();
          206 +                        setclientstate(c, NormalState);
          207 +                }
          208 +                return;
          209 +        }
          210 +
          211          if (!c)
          212                  return;
          213          if (cme->message_type == netatom[NetWMState]) {
          214 @@ -570,7 +658,7 @@ configurenotify(XEvent *e)
          215                                  for (c = m->clients; c; c = c->next)
          216                                          if (c->isfullscreen)
          217                                                  resizeclient(c, m->mx, m->my, m->mw, m->mh);
          218 -                                XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
          219 +                                resizebarwin(m);
          220                          }
          221                          focus(NULL);
          222                          arrange(NULL);
          223 @@ -655,6 +743,11 @@ destroynotify(XEvent *e)
          224  
          225          if ((c = wintoclient(ev->window)))
          226                  unmanage(c, 1);
          227 +        else if ((c = wintosystrayicon(ev->window))) {
          228 +                removesystrayicon(c);
          229 +                resizebarwin(selmon);
          230 +                updatesystray();
          231 +        }
          232  }
          233  
          234  void
          235 @@ -698,7 +791,7 @@ dirtomon(int dir)
          236  void
          237  drawbar(Monitor *m)
          238  {
          239 -        int x, w, tw = 0;
          240 +        int x, w, tw = 0, stw = 0;
          241          int boxs = drw->fonts->h / 9;
          242          int boxw = drw->fonts->h / 6 + 2;
          243          unsigned int i, occ = 0, urg = 0;
          244 @@ -707,13 +800,17 @@ drawbar(Monitor *m)
          245          if (!m->showbar)
          246                  return;
          247  
          248 +        if(showsystray && m == systraytomon(m) && !systrayonleft)
          249 +                stw = getsystraywidth();
          250 +
          251          /* draw status first so it can be overdrawn by tags later */
          252          if (m == selmon) { /* status is only drawn on selected monitor */
          253                  drw_setscheme(drw, scheme[SchemeNorm]);
          254 -                tw = TEXTW(stext) - lrpad + 2; /* 2px right padding */
          255 -                drw_text(drw, m->ww - tw, 0, tw, bh, 0, stext, 0);
          256 +                tw = TEXTW(stext) - lrpad / 2 + 2; /* 2px extra right padding */
          257 +                drw_text(drw, m->ww - tw - stw, 0, tw, bh, lrpad / 2 - 2, stext, 0);
          258          }
          259  
          260 +        resizebarwin(m);
          261          for (c = m->clients; c; c = c->next) {
          262                  occ |= c->tags;
          263                  if (c->isurgent)
          264 @@ -734,7 +831,7 @@ drawbar(Monitor *m)
          265          drw_setscheme(drw, scheme[SchemeNorm]);
          266          x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
          267  
          268 -        if ((w = m->ww - tw - x) > bh) {
          269 +        if ((w = m->ww - tw - stw - x) > bh) {
          270                  if (m->sel) {
          271                          drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]);
          272                          drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0);
          273 @@ -745,7 +842,7 @@ drawbar(Monitor *m)
          274                          drw_rect(drw, x, 0, w, bh, 1, 1);
          275                  }
          276          }
          277 -        drw_map(drw, m->barwin, 0, 0, m->ww, bh);
          278 +        drw_map(drw, m->barwin, 0, 0, m->ww - stw, bh);
          279  }
          280  
          281  void
          282 @@ -782,8 +879,11 @@ expose(XEvent *e)
          283          Monitor *m;
          284          XExposeEvent *ev = &e->xexpose;
          285  
          286 -        if (ev->count == 0 && (m = wintomon(ev->window)))
          287 +        if (ev->count == 0 && (m = wintomon(ev->window))) {
          288                  drawbar(m);
          289 +                if (m == selmon)
          290 +                        updatesystray();
          291 +        }
          292  }
          293  
          294  void
          295 @@ -869,14 +969,32 @@ getatomprop(Client *c, Atom prop)
          296          unsigned char *p = NULL;
          297          Atom da, atom = None;
          298  
          299 -        if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM,
          300 +        /* FIXME getatomprop should return the number of items and a pointer to
          301 +         * the stored data instead of this workaround */
          302 +        Atom req = XA_ATOM;
          303 +        if (prop == xatom[XembedInfo])
          304 +                req = xatom[XembedInfo];
          305 +
          306 +        if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, req,
          307                  &da, &di, &dl, &dl, &p) == Success && p) {
          308                  atom = *(Atom *)p;
          309 +                if (da == xatom[XembedInfo] && dl == 2)
          310 +                        atom = ((Atom *)p)[1];
          311                  XFree(p);
          312          }
          313          return atom;
          314  }
          315  
          316 +unsigned int
          317 +getsystraywidth()
          318 +{
          319 +        unsigned int w = 0;
          320 +        Client *i;
          321 +        if(showsystray)
          322 +                for(i = systray->icons; i; w += i->w + systrayspacing, i = i->next) ;
          323 +        return w ? w + systrayspacing : 1;
          324 +}
          325 +
          326  int
          327  getrootptr(int *x, int *y)
          328  {
          329 @@ -1017,7 +1135,8 @@ killclient(const Arg *arg)
          330  {
          331          if (!selmon->sel)
          332                  return;
          333 -        if (!sendevent(selmon->sel, wmatom[WMDelete])) {
          334 +
          335 +        if (!sendevent(selmon->sel->win, wmatom[WMDelete], NoEventMask, wmatom[WMDelete], CurrentTime, 0 , 0, 0)) {
          336                  XGrabServer(dpy);
          337                  XSetErrorHandler(xerrordummy);
          338                  XSetCloseDownMode(dpy, DestroyAll);
          339 @@ -1104,6 +1223,13 @@ maprequest(XEvent *e)
          340          static XWindowAttributes wa;
          341          XMapRequestEvent *ev = &e->xmaprequest;
          342  
          343 +        Client *i;
          344 +        if ((i = wintosystrayicon(ev->window))) {
          345 +                sendevent(i->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_WINDOW_ACTIVATE, 0, systray->win, XEMBED_EMBEDDED_VERSION);
          346 +                resizebarwin(selmon);
          347 +                updatesystray();
          348 +        }
          349 +
          350          if (!XGetWindowAttributes(dpy, ev->window, &wa) || wa.override_redirect)
          351                  return;
          352          if (!wintoclient(ev->window))
          353 @@ -1225,6 +1351,17 @@ propertynotify(XEvent *e)
          354          Window trans;
          355          XPropertyEvent *ev = &e->xproperty;
          356  
          357 +        if ((c = wintosystrayicon(ev->window))) {
          358 +                if (ev->atom == XA_WM_NORMAL_HINTS) {
          359 +                        updatesizehints(c);
          360 +                        updatesystrayicongeom(c, c->w, c->h);
          361 +                }
          362 +                else
          363 +                        updatesystrayiconstate(c, ev);
          364 +                resizebarwin(selmon);
          365 +                updatesystray();
          366 +        }
          367 +
          368          if ((ev->window == root) && (ev->atom == XA_WM_NAME))
          369                  updatestatus();
          370          else if (ev->state == PropertyDelete)
          371 @@ -1275,6 +1412,19 @@ recttomon(int x, int y, int w, int h)
          372          return r;
          373  }
          374  
          375 +void
          376 +removesystrayicon(Client *i)
          377 +{
          378 +        Client **ii;
          379 +
          380 +        if (!showsystray || !i)
          381 +                return;
          382 +        for (ii = &systray->icons; *ii && *ii != i; ii = &(*ii)->next);
          383 +        if (ii)
          384 +                *ii = i->next;
          385 +        free(i);
          386 +}
          387 +
          388  void
          389  resize(Client *c, int x, int y, int w, int h, int interact)
          390  {
          391 @@ -1282,6 +1432,14 @@ resize(Client *c, int x, int y, int w, int h, int interact)
          392                  resizeclient(c, x, y, w, h);
          393  }
          394  
          395 +void
          396 +resizebarwin(Monitor *m) {
          397 +        unsigned int w = m->ww;
          398 +        if (showsystray && m == systraytomon(m) && !systrayonleft)
          399 +                w -= getsystraywidth();
          400 +        XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, w, bh);
          401 +}
          402 +
          403  void
          404  resizeclient(Client *c, int x, int y, int w, int h)
          405  {
          406 @@ -1297,6 +1455,19 @@ resizeclient(Client *c, int x, int y, int w, int h)
          407          XSync(dpy, False);
          408  }
          409  
          410 +void
          411 +resizerequest(XEvent *e)
          412 +{
          413 +        XResizeRequestEvent *ev = &e->xresizerequest;
          414 +        Client *i;
          415 +
          416 +        if ((i = wintosystrayicon(ev->window))) {
          417 +                updatesystrayicongeom(i, ev->width, ev->height);
          418 +                resizebarwin(selmon);
          419 +                updatesystray();
          420 +        }
          421 +}
          422 +
          423  void
          424  resizemouse(const Arg *arg)
          425  {
          426 @@ -1443,26 +1614,37 @@ setclientstate(Client *c, long state)
          427  }
          428  
          429  int
          430 -sendevent(Client *c, Atom proto)
          431 +sendevent(Window w, Atom proto, int mask, long d0, long d1, long d2, long d3, long d4)
          432  {
          433          int n;
          434 -        Atom *protocols;
          435 +        Atom *protocols, mt;
          436          int exists = 0;
          437          XEvent ev;
          438  
          439 -        if (XGetWMProtocols(dpy, c->win, &protocols, &n)) {
          440 -                while (!exists && n--)
          441 -                        exists = protocols[n] == proto;
          442 -                XFree(protocols);
          443 +        if (proto == wmatom[WMTakeFocus] || proto == wmatom[WMDelete]) {
          444 +                mt = wmatom[WMProtocols];
          445 +                if (XGetWMProtocols(dpy, w, &protocols, &n)) {
          446 +                        while (!exists && n--)
          447 +                                exists = protocols[n] == proto;
          448 +                        XFree(protocols);
          449 +                }
          450 +        }
          451 +        else {
          452 +                exists = True;
          453 +                mt = proto;
          454          }
          455 +
          456          if (exists) {
          457                  ev.type = ClientMessage;
          458 -                ev.xclient.window = c->win;
          459 -                ev.xclient.message_type = wmatom[WMProtocols];
          460 +                ev.xclient.window = w;
          461 +                ev.xclient.message_type = mt;
          462                  ev.xclient.format = 32;
          463 -                ev.xclient.data.l[0] = proto;
          464 -                ev.xclient.data.l[1] = CurrentTime;
          465 -                XSendEvent(dpy, c->win, False, NoEventMask, &ev);
          466 +                ev.xclient.data.l[0] = d0;
          467 +                ev.xclient.data.l[1] = d1;
          468 +                ev.xclient.data.l[2] = d2;
          469 +                ev.xclient.data.l[3] = d3;
          470 +                ev.xclient.data.l[4] = d4;
          471 +                XSendEvent(dpy, w, False, mask, &ev);
          472          }
          473          return exists;
          474  }
          475 @@ -1476,7 +1658,7 @@ setfocus(Client *c)
          476                          XA_WINDOW, 32, PropModeReplace,
          477                          (unsigned char *) &(c->win), 1);
          478          }
          479 -        sendevent(c, wmatom[WMTakeFocus]);
          480 +        sendevent(c->win, wmatom[WMTakeFocus], NoEventMask, wmatom[WMTakeFocus], CurrentTime, 0, 0, 0);
          481  }
          482  
          483  void
          484 @@ -1572,6 +1754,10 @@ setup(void)
          485          wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
          486          netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
          487          netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
          488 +        netatom[NetSystemTray] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_S0", False);
          489 +        netatom[NetSystemTrayOP] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_OPCODE", False);
          490 +        netatom[NetSystemTrayOrientation] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION", False);
          491 +        netatom[NetSystemTrayOrientationHorz] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION_HORZ", False);
          492          netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
          493          netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
          494          netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False);
          495 @@ -1579,6 +1765,9 @@ setup(void)
          496          netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
          497          netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
          498          netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
          499 +        xatom[Manager] = XInternAtom(dpy, "MANAGER", False);
          500 +        xatom[Xembed] = XInternAtom(dpy, "_XEMBED", False);
          501 +        xatom[XembedInfo] = XInternAtom(dpy, "_XEMBED_INFO", False);
          502          /* init cursors */
          503          cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr);
          504          cursor[CurResize] = drw_cur_create(drw, XC_sizing);
          505 @@ -1587,6 +1776,8 @@ setup(void)
          506          scheme = ecalloc(LENGTH(colors), sizeof(Clr *));
          507          for (i = 0; i < LENGTH(colors); i++)
          508                  scheme[i] = drw_scm_create(drw, colors[i], 3);
          509 +        /* init system tray */
          510 +        updatesystray();
          511          /* init bars */
          512          updatebars();
          513          updatestatus();
          514 @@ -1717,7 +1908,18 @@ togglebar(const Arg *arg)
          515  {
          516          selmon->showbar = !selmon->showbar;
          517          updatebarpos(selmon);
          518 -        XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
          519 +        resizebarwin(selmon);
          520 +        if (showsystray) {
          521 +                XWindowChanges wc;
          522 +                if (!selmon->showbar)
          523 +                        wc.y = -bh;
          524 +                else if (selmon->showbar) {
          525 +                        wc.y = 0;
          526 +                        if (!selmon->topbar)
          527 +                                wc.y = selmon->mh - bh;
          528 +                }
          529 +                XConfigureWindow(dpy, systray->win, CWY, &wc);
          530 +        }
          531          arrange(selmon);
          532  }
          533  
          534 @@ -1813,11 +2015,18 @@ unmapnotify(XEvent *e)
          535                  else
          536                          unmanage(c, 0);
          537          }
          538 +        else if ((c = wintosystrayicon(ev->window))) {
          539 +                /* KLUDGE! sometimes icons occasionally unmap their windows, but do
          540 +                 * _not_ destroy them. We map those windows back */
          541 +                XMapRaised(dpy, c->win);
          542 +                updatesystray();
          543 +        }
          544  }
          545  
          546  void
          547  updatebars(void)
          548  {
          549 +        unsigned int w;
          550          Monitor *m;
          551          XSetWindowAttributes wa = {
          552                  .override_redirect = True,
          553 @@ -1828,10 +2037,15 @@ updatebars(void)
          554          for (m = mons; m; m = m->next) {
          555                  if (m->barwin)
          556                          continue;
          557 -                m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
          558 +                w = m->ww;
          559 +                if (showsystray && m == systraytomon(m))
          560 +                        w -= getsystraywidth();
          561 +                m->barwin = XCreateWindow(dpy, root, m->wx, m->by, w, bh, 0, DefaultDepth(dpy, screen),
          562                                  CopyFromParent, DefaultVisual(dpy, screen),
          563                                  CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
          564                  XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
          565 +                if (showsystray && m == systraytomon(m))
          566 +                        XMapRaised(dpy, systray->win);
          567                  XMapRaised(dpy, m->barwin);
          568                  XSetClassHint(dpy, m->barwin, &ch);
          569          }
          570 @@ -2008,6 +2222,125 @@ updatestatus(void)
          571          if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
          572                  strcpy(stext, "dwm-"VERSION);
          573          drawbar(selmon);
          574 +        updatesystray();
          575 +}
          576 +
          577 +
          578 +void
          579 +updatesystrayicongeom(Client *i, int w, int h)
          580 +{
          581 +        if (i) {
          582 +                i->h = bh;
          583 +                if (w == h)
          584 +                        i->w = bh;
          585 +                else if (h == bh)
          586 +                        i->w = w;
          587 +                else
          588 +                        i->w = (int) ((float)bh * ((float)w / (float)h));
          589 +                applysizehints(i, &(i->x), &(i->y), &(i->w), &(i->h), False);
          590 +                /* force icons into the systray dimensions if they don't want to */
          591 +                if (i->h > bh) {
          592 +                        if (i->w == i->h)
          593 +                                i->w = bh;
          594 +                        else
          595 +                                i->w = (int) ((float)bh * ((float)i->w / (float)i->h));
          596 +                        i->h = bh;
          597 +                }
          598 +        }
          599 +}
          600 +
          601 +void
          602 +updatesystrayiconstate(Client *i, XPropertyEvent *ev)
          603 +{
          604 +        long flags;
          605 +        int code = 0;
          606 +
          607 +        if (!showsystray || !i || ev->atom != xatom[XembedInfo] ||
          608 +                        !(flags = getatomprop(i, xatom[XembedInfo])))
          609 +                return;
          610 +
          611 +        if (flags & XEMBED_MAPPED && !i->tags) {
          612 +                i->tags = 1;
          613 +                code = XEMBED_WINDOW_ACTIVATE;
          614 +                XMapRaised(dpy, i->win);
          615 +                setclientstate(i, NormalState);
          616 +        }
          617 +        else if (!(flags & XEMBED_MAPPED) && i->tags) {
          618 +                i->tags = 0;
          619 +                code = XEMBED_WINDOW_DEACTIVATE;
          620 +                XUnmapWindow(dpy, i->win);
          621 +                setclientstate(i, WithdrawnState);
          622 +        }
          623 +        else
          624 +                return;
          625 +        sendevent(i->win, xatom[Xembed], StructureNotifyMask, CurrentTime, code, 0,
          626 +                        systray->win, XEMBED_EMBEDDED_VERSION);
          627 +}
          628 +
          629 +void
          630 +updatesystray(void)
          631 +{
          632 +        XSetWindowAttributes wa;
          633 +        XWindowChanges wc;
          634 +        Client *i;
          635 +        Monitor *m = systraytomon(NULL);
          636 +        unsigned int x = m->mx + m->mw;
          637 +        unsigned int sw = TEXTW(stext) - lrpad + systrayspacing;
          638 +        unsigned int w = 1;
          639 +
          640 +        if (!showsystray)
          641 +                return;
          642 +        if (systrayonleft)
          643 +                x -= sw + lrpad / 2;
          644 +        if (!systray) {
          645 +                /* init systray */
          646 +                if (!(systray = (Systray *)calloc(1, sizeof(Systray))))
          647 +                        die("fatal: could not malloc() %u bytes\n", sizeof(Systray));
          648 +                systray->win = XCreateSimpleWindow(dpy, root, x, m->by, w, bh, 0, 0, scheme[SchemeSel][ColBg].pixel);
          649 +                wa.event_mask        = ButtonPressMask | ExposureMask;
          650 +                wa.override_redirect = True;
          651 +                wa.background_pixel  = scheme[SchemeNorm][ColBg].pixel;
          652 +                XSelectInput(dpy, systray->win, SubstructureNotifyMask);
          653 +                XChangeProperty(dpy, systray->win, netatom[NetSystemTrayOrientation], XA_CARDINAL, 32,
          654 +                                PropModeReplace, (unsigned char *)&netatom[NetSystemTrayOrientationHorz], 1);
          655 +                XChangeWindowAttributes(dpy, systray->win, CWEventMask|CWOverrideRedirect|CWBackPixel, &wa);
          656 +                XMapRaised(dpy, systray->win);
          657 +                XSetSelectionOwner(dpy, netatom[NetSystemTray], systray->win, CurrentTime);
          658 +                if (XGetSelectionOwner(dpy, netatom[NetSystemTray]) == systray->win) {
          659 +                        sendevent(root, xatom[Manager], StructureNotifyMask, CurrentTime, netatom[NetSystemTray], systray->win, 0, 0);
          660 +                        XSync(dpy, False);
          661 +                }
          662 +                else {
          663 +                        fprintf(stderr, "dwm: unable to obtain system tray.\n");
          664 +                        free(systray);
          665 +                        systray = NULL;
          666 +                        return;
          667 +                }
          668 +        }
          669 +        for (w = 0, i = systray->icons; i; i = i->next) {
          670 +                /* make sure the background color stays the same */
          671 +                wa.background_pixel  = scheme[SchemeNorm][ColBg].pixel;
          672 +                XChangeWindowAttributes(dpy, i->win, CWBackPixel, &wa);
          673 +                XMapRaised(dpy, i->win);
          674 +                w += systrayspacing;
          675 +                i->x = w;
          676 +                XMoveResizeWindow(dpy, i->win, i->x, 0, i->w, i->h);
          677 +                w += i->w;
          678 +                if (i->mon != m)
          679 +                        i->mon = m;
          680 +        }
          681 +        w = w ? w + systrayspacing : 1;
          682 +        x -= w;
          683 +        XMoveResizeWindow(dpy, systray->win, x, m->by, w, bh);
          684 +        wc.x = x; wc.y = m->by; wc.width = w; wc.height = bh;
          685 +        wc.stack_mode = Above; wc.sibling = m->barwin;
          686 +        XConfigureWindow(dpy, systray->win, CWX|CWY|CWWidth|CWHeight|CWSibling|CWStackMode, &wc);
          687 +        XMapWindow(dpy, systray->win);
          688 +        XMapSubwindows(dpy, systray->win);
          689 +        /* redraw background */
          690 +        XSetForeground(dpy, drw->gc, scheme[SchemeNorm][ColBg].pixel);
          691 +        XFillRectangle(dpy, systray->win, drw->gc, 0, 0, w, bh);
          692 +        XSync(dpy, False);
          693  }
          694  
          695  void
          696 @@ -2075,6 +2408,16 @@ wintoclient(Window w)
          697          return NULL;
          698  }
          699  
          700 +Client *
          701 +wintosystrayicon(Window w) {
          702 +        Client *i = NULL;
          703 +
          704 +        if (!showsystray || !w)
          705 +                return i;
          706 +        for (i = systray->icons; i && i->win != w; i = i->next) ;
          707 +        return i;
          708 +}
          709 +
          710  Monitor *
          711  wintomon(Window w)
          712  {
          713 @@ -2128,6 +2471,22 @@ xerrorstart(Display *dpy, XErrorEvent *ee)
          714          return -1;
          715  }
          716  
          717 +Monitor *
          718 +systraytomon(Monitor *m) {
          719 +        Monitor *t;
          720 +        int i, n;
          721 +        if(!systraypinning) {
          722 +                if(!m)
          723 +                        return selmon;
          724 +                return m == selmon ? m : NULL;
          725 +        }
          726 +        for(n = 1, t = mons; t && t->next; n++, t = t->next) ;
          727 +        for(i = 1, t = mons; t && t->next && i < systraypinning; i++, t = t->next) ;
          728 +        if(systraypinningfailfirst && n < systraypinning)
          729 +                return mons;
          730 +        return t;
          731 +}
          732 +
          733  void
          734  zoom(const Arg *arg)
          735  {