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       dwm-systray-20190208-cb3f58a.diff (23241B)
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            1 diff --git a/config.def.h b/config.def.h
            2 index 1c0b587..2d824d1 100644
            3 --- a/config.def.h
            4 +++ b/config.def.h
            5 @@ -3,6 +3,10 @@
            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 systrayspacing = 2;   /* systray spacing */
           11 +static const int systraypinningfailfirst = 1;   /* 1: if pinning fails, display systray on the first monitor, False: display systray on the last monitor*/
           12 +static const int showsystray        = 1;     /* 0 means no systray */
           13  static const int showbar            = 1;        /* 0 means no bar */
           14  static const int topbar             = 1;        /* 0 means bottom bar */
           15  static const char *fonts[]          = { "monospace:size=10" };
           16 diff --git a/dwm.c b/dwm.c
           17 index 4465af1..4bccb41 100644
           18 --- a/dwm.c
           19 +++ b/dwm.c
           20 @@ -57,12 +57,30 @@
           21  #define TAGMASK                 ((1 << LENGTH(tags)) - 1)
           22  #define TEXTW(X)                (drw_fontset_getwidth(drw, (X)) + lrpad)
           23  
           24 +#define SYSTEM_TRAY_REQUEST_DOCK    0
           25 +
           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 +
           32 +#define XEMBED_MAPPED              (1 << 0)
           33 +#define XEMBED_WINDOW_ACTIVATE      1
           34 +#define XEMBED_WINDOW_DEACTIVATE    2
           35 +
           36 +#define VERSION_MAJOR               0
           37 +#define VERSION_MINOR               0
           38 +#define XEMBED_EMBEDDED_VERSION (VERSION_MAJOR << 16) | VERSION_MINOR
           39 +
           40  /* enums */
           41  enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
           42  enum { SchemeNorm, SchemeSel }; /* color schemes */
           43  enum { NetSupported, NetWMName, NetWMState, NetWMCheck,
           44 +       NetSystemTray, NetSystemTrayOP, NetSystemTrayOrientation, NetSystemTrayOrientationHorz,
           45         NetWMFullscreen, NetActiveWindow, NetWMWindowType,
           46         NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
           47 +enum { Manager, Xembed, XembedInfo, XLast }; /* Xembed atoms */
           48  enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
           49  enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
           50         ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
           51 @@ -141,6 +159,12 @@ typedef struct {
           52          int monitor;
           53  } Rule;
           54  
           55 +typedef struct Systray   Systray;
           56 +struct Systray {
           57 +        Window win;
           58 +        Client *icons;
           59 +};
           60 +
           61  /* function declarations */
           62  static void applyrules(Client *c);
           63  static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact);
           64 @@ -169,8 +193,10 @@ static void focus(Client *c);
           65  static void focusin(XEvent *e);
           66  static void focusmon(const Arg *arg);
           67  static void focusstack(const Arg *arg);
           68 +static Atom getatomprop(Client *c, Atom prop);
           69  static int getrootptr(int *x, int *y);
           70  static long getstate(Window w);
           71 +static unsigned int getsystraywidth();
           72  static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
           73  static void grabbuttons(Client *c, int focused);
           74  static void grabkeys(void);
           75 @@ -188,13 +214,16 @@ static void pop(Client *);
           76  static void propertynotify(XEvent *e);
           77  static void quit(const Arg *arg);
           78  static Monitor *recttomon(int x, int y, int w, int h);
           79 +static void removesystrayicon(Client *i);
           80  static void resize(Client *c, int x, int y, int w, int h, int interact);
           81 +static void resizebarwin(Monitor *m);
           82  static void resizeclient(Client *c, int x, int y, int w, int h);
           83  static void resizemouse(const Arg *arg);
           84 +static void resizerequest(XEvent *e);
           85  static void restack(Monitor *m);
           86  static void run(void);
           87  static void scan(void);
           88 -static int sendevent(Client *c, Atom proto);
           89 +static int sendevent(Window w, Atom proto, int m, long d0, long d1, long d2, long d3, long d4);
           90  static void sendmon(Client *c, Monitor *m);
           91  static void setclientstate(Client *c, long state);
           92  static void setfocus(Client *c);
           93 @@ -206,6 +235,7 @@ static void seturgent(Client *c, int urg);
           94  static void showhide(Client *c);
           95  static void sigchld(int unused);
           96  static void spawn(const Arg *arg);
           97 +static Monitor *systraytomon(Monitor *m);
           98  static void tag(const Arg *arg);
           99  static void tagmon(const Arg *arg);
          100  static void tile(Monitor *);
          101 @@ -223,18 +253,23 @@ static int updategeom(void);
          102  static void updatenumlockmask(void);
          103  static void updatesizehints(Client *c);
          104  static void updatestatus(void);
          105 +static void updatesystray(void);
          106 +static void updatesystrayicongeom(Client *i, int w, int h);
          107 +static void updatesystrayiconstate(Client *i, XPropertyEvent *ev);
          108  static void updatetitle(Client *c);
          109  static void updatewindowtype(Client *c);
          110  static void updatewmhints(Client *c);
          111  static void view(const Arg *arg);
          112  static Client *wintoclient(Window w);
          113  static Monitor *wintomon(Window w);
          114 +static Client *wintosystrayicon(Window w);
          115  static int xerror(Display *dpy, XErrorEvent *ee);
          116  static int xerrordummy(Display *dpy, XErrorEvent *ee);
          117  static int xerrorstart(Display *dpy, XErrorEvent *ee);
          118  static void zoom(const Arg *arg);
          119  
          120  /* variables */
          121 +static Systray *systray =  NULL;
          122  static const char broken[] = "broken";
          123  static char stext[256];
          124  static int screen;
          125 @@ -257,9 +292,10 @@ static void (*handler[LASTEvent]) (XEvent *) = {
          126          [MapRequest] = maprequest,
          127          [MotionNotify] = motionnotify,
          128          [PropertyNotify] = propertynotify,
          129 +        [ResizeRequest] = resizerequest,
          130          [UnmapNotify] = unmapnotify
          131  };
          132 -static Atom wmatom[WMLast], netatom[NetLast];
          133 +static Atom wmatom[WMLast], netatom[NetLast], xatom[XLast];
          134  static int running = 1;
          135  static Cur *cursor[CurLast];
          136  static Clr **scheme;
          137 @@ -439,7 +475,7 @@ buttonpress(XEvent *e)
          138                          arg.ui = 1 << i;
          139                  } else if (ev->x < x + blw)
          140                          click = ClkLtSymbol;
          141 -                else if (ev->x > selmon->ww - TEXTW(stext))
          142 +                else if (ev->x > selmon->ww - TEXTW(stext) - getsystraywidth())
          143                          click = ClkStatusText;
          144                  else
          145                          click = ClkWinTitle;
          146 @@ -482,6 +518,11 @@ cleanup(void)
          147          XUngrabKey(dpy, AnyKey, AnyModifier, root);
          148          while (mons)
          149                  cleanupmon(mons);
          150 +        if (showsystray) {
          151 +                XUnmapWindow(dpy, systray->win);
          152 +                XDestroyWindow(dpy, systray->win);
          153 +                free(systray);
          154 +        }
          155          for (i = 0; i < CurLast; i++)
          156                  drw_cur_free(drw, cursor[i]);
          157          for (i = 0; i < LENGTH(colors); i++)
          158 @@ -512,9 +553,52 @@ cleanupmon(Monitor *mon)
          159  void
          160  clientmessage(XEvent *e)
          161  {
          162 +        XWindowAttributes wa;
          163 +        XSetWindowAttributes swa;
          164          XClientMessageEvent *cme = &e->xclient;
          165          Client *c = wintoclient(cme->window);
          166  
          167 +        if (showsystray && cme->window == systray->win && cme->message_type == netatom[NetSystemTrayOP]) {
          168 +                /* add systray icons */
          169 +                if (cme->data.l[1] == SYSTEM_TRAY_REQUEST_DOCK) {
          170 +                        if (!(c = (Client *)calloc(1, sizeof(Client))))
          171 +                                die("fatal: could not malloc() %u bytes\n", sizeof(Client));
          172 +                        if (!(c->win = cme->data.l[2])) {
          173 +                                free(c);
          174 +                                return;
          175 +                        }
          176 +                        c->mon = selmon;
          177 +                        c->next = systray->icons;
          178 +                        systray->icons = c;
          179 +                        XGetWindowAttributes(dpy, c->win, &wa);
          180 +                        c->x = c->oldx = c->y = c->oldy = 0;
          181 +                        c->w = c->oldw = wa.width;
          182 +                        c->h = c->oldh = wa.height;
          183 +                        c->oldbw = wa.border_width;
          184 +                        c->bw = 0;
          185 +                        c->isfloating = True;
          186 +                        /* reuse tags field as mapped status */
          187 +                        c->tags = 1;
          188 +                        updatesizehints(c);
          189 +                        updatesystrayicongeom(c, wa.width, wa.height);
          190 +                        XAddToSaveSet(dpy, c->win);
          191 +                        XSelectInput(dpy, c->win, StructureNotifyMask | PropertyChangeMask | ResizeRedirectMask);
          192 +                        XReparentWindow(dpy, c->win, systray->win, 0, 0);
          193 +                        /* use parents background color */
          194 +                        swa.background_pixel  = scheme[SchemeNorm][ColBg].pixel;
          195 +                        XChangeWindowAttributes(dpy, c->win, CWBackPixel, &swa);
          196 +                        sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_EMBEDDED_NOTIFY, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
          197 +                        /* FIXME not sure if I have to send these events, too */
          198 +                        sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_FOCUS_IN, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
          199 +                        sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_WINDOW_ACTIVATE, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
          200 +                        sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_MODALITY_ON, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
          201 +                        XSync(dpy, False);
          202 +                        resizebarwin(selmon);
          203 +                        updatesystray();
          204 +                        setclientstate(c, NormalState);
          205 +                }
          206 +                return;
          207 +        }
          208          if (!c)
          209                  return;
          210          if (cme->message_type == netatom[NetWMState]) {
          211 @@ -567,7 +651,7 @@ configurenotify(XEvent *e)
          212                                  for (c = m->clients; c; c = c->next)
          213                                          if (c->isfullscreen)
          214                                                  resizeclient(c, m->mx, m->my, m->mw, m->mh);
          215 -                                XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
          216 +                                resizebarwin(m);
          217                          }
          218                          focus(NULL);
          219                          arrange(NULL);
          220 @@ -652,6 +736,11 @@ destroynotify(XEvent *e)
          221  
          222          if ((c = wintoclient(ev->window)))
          223                  unmanage(c, 1);
          224 +        else if ((c = wintosystrayicon(ev->window))) {
          225 +                removesystrayicon(c);
          226 +                resizebarwin(selmon);
          227 +                updatesystray();
          228 +        }
          229  }
          230  
          231  void
          232 @@ -695,19 +784,23 @@ dirtomon(int dir)
          233  void
          234  drawbar(Monitor *m)
          235  {
          236 -        int x, w, sw = 0;
          237 +        int x, w, sw = 0, stw = 0;
          238          int boxs = drw->fonts->h / 9;
          239          int boxw = drw->fonts->h / 6 + 2;
          240          unsigned int i, occ = 0, urg = 0;
          241          Client *c;
          242  
          243 +        if(showsystray && m == systraytomon(m))
          244 +                stw = getsystraywidth();
          245 +
          246          /* draw status first so it can be overdrawn by tags later */
          247          if (m == selmon) { /* status is only drawn on selected monitor */
          248                  drw_setscheme(drw, scheme[SchemeNorm]);
          249 -                sw = TEXTW(stext) - lrpad + 2; /* 2px right padding */
          250 -                drw_text(drw, m->ww - sw, 0, sw, bh, 0, stext, 0);
          251 +                sw = TEXTW(stext) - lrpad / 2 + 2; /* 2px right padding */
          252 +                drw_text(drw, m->ww - sw - stw, 0, sw, bh, lrpad / 2 - 2, stext, 0);
          253          }
          254  
          255 +        resizebarwin(m);
          256          for (c = m->clients; c; c = c->next) {
          257                  occ |= c->tags;
          258                  if (c->isurgent)
          259 @@ -728,7 +821,7 @@ drawbar(Monitor *m)
          260          drw_setscheme(drw, scheme[SchemeNorm]);
          261          x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
          262  
          263 -        if ((w = m->ww - sw - x) > bh) {
          264 +        if ((w = m->ww - sw - stw - x) > bh) {
          265                  if (m->sel) {
          266                          drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]);
          267                          drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0);
          268 @@ -739,7 +832,7 @@ drawbar(Monitor *m)
          269                          drw_rect(drw, x, 0, w, bh, 1, 1);
          270                  }
          271          }
          272 -        drw_map(drw, m->barwin, 0, 0, m->ww, bh);
          273 +        drw_map(drw, m->barwin, 0, 0, m->ww - stw, bh);
          274  }
          275  
          276  void
          277 @@ -776,8 +869,11 @@ expose(XEvent *e)
          278          Monitor *m;
          279          XExposeEvent *ev = &e->xexpose;
          280  
          281 -        if (ev->count == 0 && (m = wintomon(ev->window)))
          282 +        if (ev->count == 0 && (m = wintomon(ev->window))) {
          283                  drawbar(m);
          284 +                if (m == selmon)
          285 +                        updatesystray();
          286 +        }
          287  }
          288  
          289  void
          290 @@ -862,10 +958,17 @@ getatomprop(Client *c, Atom prop)
          291          unsigned long dl;
          292          unsigned char *p = NULL;
          293          Atom da, atom = None;
          294 +        /* FIXME getatomprop should return the number of items and a pointer to
          295 +         * the stored data instead of this workaround */
          296 +        Atom req = XA_ATOM;
          297 +        if (prop == xatom[XembedInfo])
          298 +                req = xatom[XembedInfo];
          299  
          300 -        if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM,
          301 +        if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, req,
          302                  &da, &di, &dl, &dl, &p) == Success && p) {
          303                  atom = *(Atom *)p;
          304 +                if (da == xatom[XembedInfo] && dl == 2)
          305 +                        atom = ((Atom *)p)[1];
          306                  XFree(p);
          307          }
          308          return atom;
          309 @@ -899,6 +1002,16 @@ getstate(Window w)
          310          return result;
          311  }
          312  
          313 +unsigned int
          314 +getsystraywidth()
          315 +{
          316 +        unsigned int w = 0;
          317 +        Client *i;
          318 +        if(showsystray)
          319 +                for(i = systray->icons; i; w += i->w + systrayspacing, i = i->next) ;
          320 +        return w ? w + systrayspacing : 1;
          321 +}
          322 +
          323  int
          324  gettextprop(Window w, Atom atom, char *text, unsigned int size)
          325  {
          326 @@ -1003,7 +1116,7 @@ killclient(const Arg *arg)
          327  {
          328          if (!selmon->sel)
          329                  return;
          330 -        if (!sendevent(selmon->sel, wmatom[WMDelete])) {
          331 +        if (!sendevent(selmon->sel->win, wmatom[WMDelete], NoEventMask, wmatom[WMDelete], CurrentTime, 0 , 0, 0)) {
          332                  XGrabServer(dpy);
          333                  XSetErrorHandler(xerrordummy);
          334                  XSetCloseDownMode(dpy, DestroyAll);
          335 @@ -1091,6 +1204,12 @@ maprequest(XEvent *e)
          336  {
          337          static XWindowAttributes wa;
          338          XMapRequestEvent *ev = &e->xmaprequest;
          339 +        Client *i;
          340 +        if ((i = wintosystrayicon(ev->window))) {
          341 +                sendevent(i->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_WINDOW_ACTIVATE, 0, systray->win, XEMBED_EMBEDDED_VERSION);
          342 +                resizebarwin(selmon);
          343 +                updatesystray();
          344 +        }
          345  
          346          if (!XGetWindowAttributes(dpy, ev->window, &wa))
          347                  return;
          348 @@ -1215,6 +1334,16 @@ propertynotify(XEvent *e)
          349          Window trans;
          350          XPropertyEvent *ev = &e->xproperty;
          351  
          352 +        if ((c = wintosystrayicon(ev->window))) {
          353 +                if (ev->atom == XA_WM_NORMAL_HINTS) {
          354 +                        updatesizehints(c);
          355 +                        updatesystrayicongeom(c, c->w, c->h);
          356 +                }
          357 +                else
          358 +                        updatesystrayiconstate(c, ev);
          359 +                resizebarwin(selmon);
          360 +                updatesystray();
          361 +        }
          362          if ((ev->window == root) && (ev->atom == XA_WM_NAME))
          363                  updatestatus();
          364          else if (ev->state == PropertyDelete)
          365 @@ -1265,6 +1394,20 @@ recttomon(int x, int y, int w, int h)
          366          return r;
          367  }
          368  
          369 +void
          370 +removesystrayicon(Client *i)
          371 +{
          372 +        Client **ii;
          373 +
          374 +        if (!showsystray || !i)
          375 +                return;
          376 +        for (ii = &systray->icons; *ii && *ii != i; ii = &(*ii)->next);
          377 +        if (ii)
          378 +                *ii = i->next;
          379 +        free(i);
          380 +}
          381 +
          382 +
          383  void
          384  resize(Client *c, int x, int y, int w, int h, int interact)
          385  {
          386 @@ -1272,6 +1415,14 @@ resize(Client *c, int x, int y, int w, int h, int interact)
          387                  resizeclient(c, x, y, w, h);
          388  }
          389  
          390 +void
          391 +resizebarwin(Monitor *m) {
          392 +        unsigned int w = m->ww;
          393 +        if (showsystray && m == systraytomon(m))
          394 +                w -= getsystraywidth();
          395 +        XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, w, bh);
          396 +}
          397 +
          398  void
          399  resizeclient(Client *c, int x, int y, int w, int h)
          400  {
          401 @@ -1344,6 +1495,19 @@ resizemouse(const Arg *arg)
          402          }
          403  }
          404  
          405 +void
          406 +resizerequest(XEvent *e)
          407 +{
          408 +        XResizeRequestEvent *ev = &e->xresizerequest;
          409 +        Client *i;
          410 +
          411 +        if ((i = wintosystrayicon(ev->window))) {
          412 +                updatesystrayicongeom(i, ev->width, ev->height);
          413 +                resizebarwin(selmon);
          414 +                updatesystray();
          415 +        }
          416 +}
          417 +
          418  void
          419  restack(Monitor *m)
          420  {
          421 @@ -1433,26 +1597,36 @@ setclientstate(Client *c, long state)
          422  }
          423  
          424  int
          425 -sendevent(Client *c, Atom proto)
          426 +sendevent(Window w, Atom proto, int mask, long d0, long d1, long d2, long d3, long d4)
          427  {
          428          int n;
          429 -        Atom *protocols;
          430 +        Atom *protocols, mt;
          431          int exists = 0;
          432          XEvent ev;
          433  
          434 -        if (XGetWMProtocols(dpy, c->win, &protocols, &n)) {
          435 -                while (!exists && n--)
          436 -                        exists = protocols[n] == proto;
          437 -                XFree(protocols);
          438 +        if (proto == wmatom[WMTakeFocus] || proto == wmatom[WMDelete]) {
          439 +                mt = wmatom[WMProtocols];
          440 +                if (XGetWMProtocols(dpy, w, &protocols, &n)) {
          441 +                        while (!exists && n--)
          442 +                                exists = protocols[n] == proto;
          443 +                        XFree(protocols);
          444 +                }
          445 +        }
          446 +        else {
          447 +                exists = True;
          448 +                mt = proto;
          449          }
          450          if (exists) {
          451                  ev.type = ClientMessage;
          452 -                ev.xclient.window = c->win;
          453 -                ev.xclient.message_type = wmatom[WMProtocols];
          454 +                ev.xclient.window = w;
          455 +                ev.xclient.message_type = mt;
          456                  ev.xclient.format = 32;
          457 -                ev.xclient.data.l[0] = proto;
          458 -                ev.xclient.data.l[1] = CurrentTime;
          459 -                XSendEvent(dpy, c->win, False, NoEventMask, &ev);
          460 +                ev.xclient.data.l[0] = d0;
          461 +                ev.xclient.data.l[1] = d1;
          462 +                ev.xclient.data.l[2] = d2;
          463 +                ev.xclient.data.l[3] = d3;
          464 +                ev.xclient.data.l[4] = d4;
          465 +                XSendEvent(dpy, w, False, mask, &ev);
          466          }
          467          return exists;
          468  }
          469 @@ -1466,7 +1640,7 @@ setfocus(Client *c)
          470                          XA_WINDOW, 32, PropModeReplace,
          471                          (unsigned char *) &(c->win), 1);
          472          }
          473 -        sendevent(c, wmatom[WMTakeFocus]);
          474 +        sendevent(c->win, wmatom[WMTakeFocus], NoEventMask, wmatom[WMTakeFocus], CurrentTime, 0, 0, 0);
          475  }
          476  
          477  void
          478 @@ -1555,6 +1729,10 @@ setup(void)
          479          wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
          480          netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
          481          netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
          482 +        netatom[NetSystemTray] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_S0", False);
          483 +        netatom[NetSystemTrayOP] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_OPCODE", False);
          484 +        netatom[NetSystemTrayOrientation] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION", False);
          485 +        netatom[NetSystemTrayOrientationHorz] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION_HORZ", False);
          486          netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
          487          netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
          488          netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False);
          489 @@ -1562,6 +1740,9 @@ setup(void)
          490          netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
          491          netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
          492          netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
          493 +        xatom[Manager] = XInternAtom(dpy, "MANAGER", False);
          494 +        xatom[Xembed] = XInternAtom(dpy, "_XEMBED", False);
          495 +        xatom[XembedInfo] = XInternAtom(dpy, "_XEMBED_INFO", False);
          496          /* init cursors */
          497          cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr);
          498          cursor[CurResize] = drw_cur_create(drw, XC_sizing);
          499 @@ -1570,6 +1751,8 @@ setup(void)
          500          scheme = ecalloc(LENGTH(colors), sizeof(Clr *));
          501          for (i = 0; i < LENGTH(colors); i++)
          502                  scheme[i] = drw_scm_create(drw, colors[i], 3);
          503 +        /* init system tray */
          504 +        updatesystray();
          505          /* init bars */
          506          updatebars();
          507          updatestatus();
          508 @@ -1701,7 +1884,18 @@ togglebar(const Arg *arg)
          509  {
          510          selmon->showbar = !selmon->showbar;
          511          updatebarpos(selmon);
          512 -        XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
          513 +        resizebarwin(selmon);
          514 +        if (showsystray) {
          515 +                XWindowChanges wc;
          516 +                if (!selmon->showbar)
          517 +                        wc.y = -bh;
          518 +                else if (selmon->showbar) {
          519 +                        wc.y = 0;
          520 +                        if (!selmon->topbar)
          521 +                                wc.y = selmon->mh - bh;
          522 +                }
          523 +                XConfigureWindow(dpy, systray->win, CWY, &wc);
          524 +        }
          525          arrange(selmon);
          526  }
          527  
          528 @@ -1796,11 +1990,18 @@ unmapnotify(XEvent *e)
          529                  else
          530                          unmanage(c, 0);
          531          }
          532 +        else if ((c = wintosystrayicon(ev->window))) {
          533 +                /* KLUDGE! sometimes icons occasionally unmap their windows, but do
          534 +                 * _not_ destroy them. We map those windows back */
          535 +                XMapRaised(dpy, c->win);
          536 +                updatesystray();
          537 +        }
          538  }
          539  
          540  void
          541  updatebars(void)
          542  {
          543 +        unsigned int w;
          544          Monitor *m;
          545          XSetWindowAttributes wa = {
          546                  .override_redirect = True,
          547 @@ -1811,10 +2012,15 @@ updatebars(void)
          548          for (m = mons; m; m = m->next) {
          549                  if (m->barwin)
          550                          continue;
          551 -                m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
          552 +                w = m->ww;
          553 +                if (showsystray && m == systraytomon(m))
          554 +                        w -= getsystraywidth();
          555 +                m->barwin = XCreateWindow(dpy, root, m->wx, m->by, w, bh, 0, DefaultDepth(dpy, screen),
          556                                  CopyFromParent, DefaultVisual(dpy, screen),
          557                                  CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
          558                  XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
          559 +                if (showsystray && m == systraytomon(m))
          560 +                        XMapRaised(dpy, systray->win);
          561                  XMapRaised(dpy, m->barwin);
          562                  XSetClassHint(dpy, m->barwin, &ch);
          563          }
          564 @@ -1990,6 +2196,121 @@ updatestatus(void)
          565          if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
          566                  strcpy(stext, "dwm-"VERSION);
          567          drawbar(selmon);
          568 +        updatesystray();
          569 +}
          570 +
          571 +void
          572 +updatesystrayicongeom(Client *i, int w, int h)
          573 +{
          574 +        if (i) {
          575 +                i->h = bh;
          576 +                if (w == h)
          577 +                        i->w = bh;
          578 +                else if (h == bh)
          579 +                        i->w = w;
          580 +                else
          581 +                        i->w = (int) ((float)bh * ((float)w / (float)h));
          582 +                applysizehints(i, &(i->x), &(i->y), &(i->w), &(i->h), False);
          583 +                /* force icons into the systray dimenons if they don't want to */
          584 +                if (i->h > bh) {
          585 +                        if (i->w == i->h)
          586 +                                i->w = bh;
          587 +                        else
          588 +                                i->w = (int) ((float)bh * ((float)i->w / (float)i->h));
          589 +                        i->h = bh;
          590 +                }
          591 +        }
          592 +}
          593 +
          594 +void
          595 +updatesystrayiconstate(Client *i, XPropertyEvent *ev)
          596 +{
          597 +        long flags;
          598 +        int code = 0;
          599 +
          600 +        if (!showsystray || !i || ev->atom != xatom[XembedInfo] ||
          601 +                        !(flags = getatomprop(i, xatom[XembedInfo])))
          602 +                return;
          603 +
          604 +        if (flags & XEMBED_MAPPED && !i->tags) {
          605 +                i->tags = 1;
          606 +                code = XEMBED_WINDOW_ACTIVATE;
          607 +                XMapRaised(dpy, i->win);
          608 +                setclientstate(i, NormalState);
          609 +        }
          610 +        else if (!(flags & XEMBED_MAPPED) && i->tags) {
          611 +                i->tags = 0;
          612 +                code = XEMBED_WINDOW_DEACTIVATE;
          613 +                XUnmapWindow(dpy, i->win);
          614 +                setclientstate(i, WithdrawnState);
          615 +        }
          616 +        else
          617 +                return;
          618 +        sendevent(i->win, xatom[Xembed], StructureNotifyMask, CurrentTime, code, 0,
          619 +                        systray->win, XEMBED_EMBEDDED_VERSION);
          620 +}
          621 +
          622 +void
          623 +updatesystray(void)
          624 +{
          625 +        XSetWindowAttributes wa;
          626 +        XWindowChanges wc;
          627 +        Client *i;
          628 +        Monitor *m = systraytomon(NULL);
          629 +        unsigned int x = m->mx + m->mw;
          630 +        unsigned int w = 1;
          631 +
          632 +        if (!showsystray)
          633 +                return;
          634 +        if (!systray) {
          635 +                /* init systray */
          636 +                if (!(systray = (Systray *)calloc(1, sizeof(Systray))))
          637 +                        die("fatal: could not malloc() %u bytes\n", sizeof(Systray));
          638 +                systray->win = XCreateSimpleWindow(dpy, root, x, m->by, w, bh, 0, 0, scheme[SchemeSel][ColBg].pixel);
          639 +                wa.event_mask        = ButtonPressMask | ExposureMask;
          640 +                wa.override_redirect = True;
          641 +                wa.background_pixel  = scheme[SchemeNorm][ColBg].pixel;
          642 +                XSelectInput(dpy, systray->win, SubstructureNotifyMask);
          643 +                XChangeProperty(dpy, systray->win, netatom[NetSystemTrayOrientation], XA_CARDINAL, 32,
          644 +                                PropModeReplace, (unsigned char *)&netatom[NetSystemTrayOrientationHorz], 1);
          645 +                XChangeWindowAttributes(dpy, systray->win, CWEventMask|CWOverrideRedirect|CWBackPixel, &wa);
          646 +                XMapRaised(dpy, systray->win);
          647 +                XSetSelectionOwner(dpy, netatom[NetSystemTray], systray->win, CurrentTime);
          648 +                if (XGetSelectionOwner(dpy, netatom[NetSystemTray]) == systray->win) {
          649 +                        sendevent(root, xatom[Manager], StructureNotifyMask, CurrentTime, netatom[NetSystemTray], systray->win, 0, 0);
          650 +                        XSync(dpy, False);
          651 +                }
          652 +                else {
          653 +                        fprintf(stderr, "dwm: unable to obtain system tray.\n");
          654 +                        free(systray);
          655 +                        systray = NULL;
          656 +                        return;
          657 +                }
          658 +        }
          659 +        for (w = 0, i = systray->icons; i; i = i->next) {
          660 +                /* make sure the background color stays the same */
          661 +                wa.background_pixel  = scheme[SchemeNorm][ColBg].pixel;
          662 +                XChangeWindowAttributes(dpy, i->win, CWBackPixel, &wa);
          663 +                XMapRaised(dpy, i->win);
          664 +                w += systrayspacing;
          665 +                i->x = w;
          666 +                XMoveResizeWindow(dpy, i->win, i->x, 0, i->w, i->h);
          667 +                w += i->w;
          668 +                if (i->mon != m)
          669 +                        i->mon = m;
          670 +        }
          671 +        w = w ? w + systrayspacing : 1;
          672 +        x -= w;
          673 +        XMoveResizeWindow(dpy, systray->win, x, m->by, w, bh);
          674 +        wc.x = x; wc.y = m->by; wc.width = w; wc.height = bh;
          675 +        wc.stack_mode = Above; wc.sibling = m->barwin;
          676 +        XConfigureWindow(dpy, systray->win, CWX|CWY|CWWidth|CWHeight|CWSibling|CWStackMode, &wc);
          677 +        XMapWindow(dpy, systray->win);
          678 +        XMapSubwindows(dpy, systray->win);
          679 +        /* redraw background */
          680 +        XSetForeground(dpy, drw->gc, scheme[SchemeNorm][ColBg].pixel);
          681 +        XFillRectangle(dpy, systray->win, drw->gc, 0, 0, w, bh);
          682 +        XSync(dpy, False);
          683  }
          684  
          685  void
          686 @@ -2057,6 +2378,16 @@ wintoclient(Window w)
          687          return NULL;
          688  }
          689  
          690 +Client *
          691 +wintosystrayicon(Window w) {
          692 +        Client *i = NULL;
          693 +
          694 +        if (!showsystray || !w)
          695 +                return i;
          696 +        for (i = systray->icons; i && i->win != w; i = i->next) ;
          697 +        return i;
          698 +}
          699 +
          700  Monitor *
          701  wintomon(Window w)
          702  {
          703 @@ -2110,6 +2441,22 @@ xerrorstart(Display *dpy, XErrorEvent *ee)
          704          return -1;
          705  }
          706  
          707 +Monitor *
          708 +systraytomon(Monitor *m) {
          709 +        Monitor *t;
          710 +        int i, n;
          711 +        if(!systraypinning) {
          712 +                if(!m)
          713 +                        return selmon;
          714 +                return m == selmon ? m : NULL;
          715 +        }
          716 +        for(n = 1, t = mons; t && t->next; n++, t = t->next) ;
          717 +        for(i = 1, t = mons; t && t->next && i < systraypinning; i++, t = t->next) ;
          718 +        if(systraypinningfailfirst && n < systraypinning)
          719 +                return mons;
          720 +        return t;
          721 +}
          722 +
          723  void
          724  zoom(const Arg *arg)
          725  {