dwm-systray-6.2.diff - sites - public wiki contents of suckless.org
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       dwm-systray-6.2.diff (23923B)
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            1 From 4001ccae7b1a41bdcb247b0cf095a51af7b68c28 Mon Sep 17 00:00:00 2001
            2 From: Igor Gevka <igor.gevka@gmail.com>
            3 Date: Sun, 16 Feb 2020 15:03:10 -0800
            4 Subject: [PATCH] [PATCH] Implements a system tray for dwm.
            5 
            6 Original author: Jan Christoph Ebersbach <jceb@e-jc.de>, inspired by http://code.google.com/p/dwm-plus
            7 URL: http://dwm.suckless.org/patches/systray
            8 dwm 6.2 port by Igor Gevka <igor.gevka@gmail.com>
            9 ---
           10  config.def.h |   4 +
           11  dwm.c        | 404 +++++++++++++++++++++++++++++++++++++++++++++++----
           12  2 files changed, 382 insertions(+), 26 deletions(-)
           13 
           14 diff --git a/config.def.h b/config.def.h
           15 index 1c0b587..2d824d1 100644
           16 --- a/config.def.h
           17 +++ b/config.def.h
           18 @@ -3,6 +3,10 @@
           19  /* appearance */
           20  static const unsigned int borderpx  = 1;        /* border pixel of windows */
           21  static const unsigned int snap      = 32;       /* snap pixel */
           22 +static const unsigned int systraypinning = 0;   /* 0: sloppy systray follows selected monitor, >0: pin systray to monitor X */
           23 +static const unsigned int systrayspacing = 2;   /* systray spacing */
           24 +static const int systraypinningfailfirst = 1;   /* 1: if pinning fails, display systray on the first monitor, False: display systray on the last monitor*/
           25 +static const int showsystray        = 1;     /* 0 means no systray */
           26  static const int showbar            = 1;        /* 0 means no bar */
           27  static const int topbar             = 1;        /* 0 means bottom bar */
           28  static const char *fonts[]          = { "monospace:size=10" };
           29 diff --git a/dwm.c b/dwm.c
           30 index 4465af1..3e361fa 100644
           31 --- a/dwm.c
           32 +++ b/dwm.c
           33 @@ -57,12 +57,30 @@
           34  #define TAGMASK                 ((1 << LENGTH(tags)) - 1)
           35  #define TEXTW(X)                (drw_fontset_getwidth(drw, (X)) + lrpad)
           36  
           37 +#define SYSTEM_TRAY_REQUEST_DOCK    0
           38 +
           39 +/* XEMBED messages */
           40 +#define XEMBED_EMBEDDED_NOTIFY      0
           41 +#define XEMBED_WINDOW_ACTIVATE      1
           42 +#define XEMBED_FOCUS_IN             4
           43 +#define XEMBED_MODALITY_ON         10
           44 +
           45 +#define XEMBED_MAPPED              (1 << 0)
           46 +#define XEMBED_WINDOW_ACTIVATE      1
           47 +#define XEMBED_WINDOW_DEACTIVATE    2
           48 +
           49 +#define VERSION_MAJOR               0
           50 +#define VERSION_MINOR               0
           51 +#define XEMBED_EMBEDDED_VERSION (VERSION_MAJOR << 16) | VERSION_MINOR
           52 +
           53  /* enums */
           54  enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
           55  enum { SchemeNorm, SchemeSel }; /* color schemes */
           56  enum { NetSupported, NetWMName, NetWMState, NetWMCheck,
           57 +       NetSystemTray, NetSystemTrayOP, NetSystemTrayOrientation, NetSystemTrayOrientationHorz,
           58         NetWMFullscreen, NetActiveWindow, NetWMWindowType,
           59         NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
           60 +enum { Manager, Xembed, XembedInfo, XLast }; /* Xembed atoms */
           61  enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
           62  enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
           63         ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
           64 @@ -141,6 +159,12 @@ typedef struct {
           65          int monitor;
           66  } Rule;
           67  
           68 +typedef struct Systray   Systray;
           69 +struct Systray {
           70 +        Window win;
           71 +        Client *icons;
           72 +};
           73 +
           74  /* function declarations */
           75  static void applyrules(Client *c);
           76  static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact);
           77 @@ -169,8 +193,10 @@ static void focus(Client *c);
           78  static void focusin(XEvent *e);
           79  static void focusmon(const Arg *arg);
           80  static void focusstack(const Arg *arg);
           81 +static Atom getatomprop(Client *c, Atom prop);
           82  static int getrootptr(int *x, int *y);
           83  static long getstate(Window w);
           84 +static unsigned int getsystraywidth();
           85  static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
           86  static void grabbuttons(Client *c, int focused);
           87  static void grabkeys(void);
           88 @@ -188,13 +214,16 @@ static void pop(Client *);
           89  static void propertynotify(XEvent *e);
           90  static void quit(const Arg *arg);
           91  static Monitor *recttomon(int x, int y, int w, int h);
           92 +static void removesystrayicon(Client *i);
           93  static void resize(Client *c, int x, int y, int w, int h, int interact);
           94 +static void resizebarwin(Monitor *m);
           95  static void resizeclient(Client *c, int x, int y, int w, int h);
           96  static void resizemouse(const Arg *arg);
           97 +static void resizerequest(XEvent *e);
           98  static void restack(Monitor *m);
           99  static void run(void);
          100  static void scan(void);
          101 -static int sendevent(Client *c, Atom proto);
          102 +static int sendevent(Window w, Atom proto, int m, long d0, long d1, long d2, long d3, long d4);
          103  static void sendmon(Client *c, Monitor *m);
          104  static void setclientstate(Client *c, long state);
          105  static void setfocus(Client *c);
          106 @@ -206,6 +235,7 @@ static void seturgent(Client *c, int urg);
          107  static void showhide(Client *c);
          108  static void sigchld(int unused);
          109  static void spawn(const Arg *arg);
          110 +static Monitor *systraytomon(Monitor *m);
          111  static void tag(const Arg *arg);
          112  static void tagmon(const Arg *arg);
          113  static void tile(Monitor *);
          114 @@ -223,18 +253,23 @@ static int updategeom(void);
          115  static void updatenumlockmask(void);
          116  static void updatesizehints(Client *c);
          117  static void updatestatus(void);
          118 +static void updatesystray(void);
          119 +static void updatesystrayicongeom(Client *i, int w, int h);
          120 +static void updatesystrayiconstate(Client *i, XPropertyEvent *ev);
          121  static void updatetitle(Client *c);
          122  static void updatewindowtype(Client *c);
          123  static void updatewmhints(Client *c);
          124  static void view(const Arg *arg);
          125  static Client *wintoclient(Window w);
          126  static Monitor *wintomon(Window w);
          127 +static Client *wintosystrayicon(Window w);
          128  static int xerror(Display *dpy, XErrorEvent *ee);
          129  static int xerrordummy(Display *dpy, XErrorEvent *ee);
          130  static int xerrorstart(Display *dpy, XErrorEvent *ee);
          131  static void zoom(const Arg *arg);
          132  
          133  /* variables */
          134 +static Systray *systray =  NULL;
          135  static const char broken[] = "broken";
          136  static char stext[256];
          137  static int screen;
          138 @@ -257,9 +292,10 @@ static void (*handler[LASTEvent]) (XEvent *) = {
          139          [MapRequest] = maprequest,
          140          [MotionNotify] = motionnotify,
          141          [PropertyNotify] = propertynotify,
          142 +        [ResizeRequest] = resizerequest,
          143          [UnmapNotify] = unmapnotify
          144  };
          145 -static Atom wmatom[WMLast], netatom[NetLast];
          146 +static Atom wmatom[WMLast], netatom[NetLast], xatom[XLast];
          147  static int running = 1;
          148  static Cur *cursor[CurLast];
          149  static Clr **scheme;
          150 @@ -439,7 +475,7 @@ buttonpress(XEvent *e)
          151                          arg.ui = 1 << i;
          152                  } else if (ev->x < x + blw)
          153                          click = ClkLtSymbol;
          154 -                else if (ev->x > selmon->ww - TEXTW(stext))
          155 +                else if (ev->x > selmon->ww - TEXTW(stext) - getsystraywidth())
          156                          click = ClkStatusText;
          157                  else
          158                          click = ClkWinTitle;
          159 @@ -482,6 +518,11 @@ cleanup(void)
          160          XUngrabKey(dpy, AnyKey, AnyModifier, root);
          161          while (mons)
          162                  cleanupmon(mons);
          163 +        if (showsystray) {
          164 +                XUnmapWindow(dpy, systray->win);
          165 +                XDestroyWindow(dpy, systray->win);
          166 +                free(systray);
          167 +        }
          168          for (i = 0; i < CurLast; i++)
          169                  drw_cur_free(drw, cursor[i]);
          170          for (i = 0; i < LENGTH(colors); i++)
          171 @@ -512,9 +553,57 @@ cleanupmon(Monitor *mon)
          172  void
          173  clientmessage(XEvent *e)
          174  {
          175 +        XWindowAttributes wa;
          176 +        XSetWindowAttributes swa;
          177          XClientMessageEvent *cme = &e->xclient;
          178          Client *c = wintoclient(cme->window);
          179  
          180 +        if (showsystray && cme->window == systray->win && cme->message_type == netatom[NetSystemTrayOP]) {
          181 +                /* add systray icons */
          182 +                if (cme->data.l[1] == SYSTEM_TRAY_REQUEST_DOCK) {
          183 +                        if (!(c = (Client *)calloc(1, sizeof(Client))))
          184 +                                die("fatal: could not malloc() %u bytes\n", sizeof(Client));
          185 +                        if (!(c->win = cme->data.l[2])) {
          186 +                                free(c);
          187 +                                return;
          188 +                        }
          189 +                        c->mon = selmon;
          190 +                        c->next = systray->icons;
          191 +                        systray->icons = c;
          192 +                        if (!XGetWindowAttributes(dpy, c->win, &wa)) {
          193 +                                /* use sane defaults */
          194 +                                wa.width = bh;
          195 +                                wa.height = bh;
          196 +                                wa.border_width = 0;
          197 +                        }
          198 +                        c->x = c->oldx = c->y = c->oldy = 0;
          199 +                        c->w = c->oldw = wa.width;
          200 +                        c->h = c->oldh = wa.height;
          201 +                        c->oldbw = wa.border_width;
          202 +                        c->bw = 0;
          203 +                        c->isfloating = True;
          204 +                        /* reuse tags field as mapped status */
          205 +                        c->tags = 1;
          206 +                        updatesizehints(c);
          207 +                        updatesystrayicongeom(c, wa.width, wa.height);
          208 +                        XAddToSaveSet(dpy, c->win);
          209 +                        XSelectInput(dpy, c->win, StructureNotifyMask | PropertyChangeMask | ResizeRedirectMask);
          210 +                        XReparentWindow(dpy, c->win, systray->win, 0, 0);
          211 +                        /* use parents background color */
          212 +                        swa.background_pixel  = scheme[SchemeNorm][ColBg].pixel;
          213 +                        XChangeWindowAttributes(dpy, c->win, CWBackPixel, &swa);
          214 +                        sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_EMBEDDED_NOTIFY, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
          215 +                        /* FIXME not sure if I have to send these events, too */
          216 +                        sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_FOCUS_IN, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
          217 +                        sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_WINDOW_ACTIVATE, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
          218 +                        sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_MODALITY_ON, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
          219 +                        XSync(dpy, False);
          220 +                        resizebarwin(selmon);
          221 +                        updatesystray();
          222 +                        setclientstate(c, NormalState);
          223 +                }
          224 +                return;
          225 +        }
          226          if (!c)
          227                  return;
          228          if (cme->message_type == netatom[NetWMState]) {
          229 @@ -567,7 +656,7 @@ configurenotify(XEvent *e)
          230                                  for (c = m->clients; c; c = c->next)
          231                                          if (c->isfullscreen)
          232                                                  resizeclient(c, m->mx, m->my, m->mw, m->mh);
          233 -                                XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
          234 +                                resizebarwin(m);
          235                          }
          236                          focus(NULL);
          237                          arrange(NULL);
          238 @@ -652,6 +741,11 @@ destroynotify(XEvent *e)
          239  
          240          if ((c = wintoclient(ev->window)))
          241                  unmanage(c, 1);
          242 +        else if ((c = wintosystrayicon(ev->window))) {
          243 +                removesystrayicon(c);
          244 +                resizebarwin(selmon);
          245 +                updatesystray();
          246 +        }
          247  }
          248  
          249  void
          250 @@ -695,19 +789,23 @@ dirtomon(int dir)
          251  void
          252  drawbar(Monitor *m)
          253  {
          254 -        int x, w, sw = 0;
          255 +        int x, w, sw = 0, stw = 0;
          256          int boxs = drw->fonts->h / 9;
          257          int boxw = drw->fonts->h / 6 + 2;
          258          unsigned int i, occ = 0, urg = 0;
          259          Client *c;
          260  
          261 +        if(showsystray && m == systraytomon(m))
          262 +                stw = getsystraywidth();
          263 +
          264          /* draw status first so it can be overdrawn by tags later */
          265          if (m == selmon) { /* status is only drawn on selected monitor */
          266                  drw_setscheme(drw, scheme[SchemeNorm]);
          267 -                sw = TEXTW(stext) - lrpad + 2; /* 2px right padding */
          268 -                drw_text(drw, m->ww - sw, 0, sw, bh, 0, stext, 0);
          269 +                sw = TEXTW(stext) - lrpad / 2 + 2; /* 2px right padding */
          270 +                drw_text(drw, m->ww - sw - stw, 0, sw, bh, lrpad / 2 - 2, stext, 0);
          271          }
          272  
          273 +        resizebarwin(m);
          274          for (c = m->clients; c; c = c->next) {
          275                  occ |= c->tags;
          276                  if (c->isurgent)
          277 @@ -728,7 +826,7 @@ drawbar(Monitor *m)
          278          drw_setscheme(drw, scheme[SchemeNorm]);
          279          x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
          280  
          281 -        if ((w = m->ww - sw - x) > bh) {
          282 +        if ((w = m->ww - sw - stw - x) > bh) {
          283                  if (m->sel) {
          284                          drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]);
          285                          drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0);
          286 @@ -739,7 +837,7 @@ drawbar(Monitor *m)
          287                          drw_rect(drw, x, 0, w, bh, 1, 1);
          288                  }
          289          }
          290 -        drw_map(drw, m->barwin, 0, 0, m->ww, bh);
          291 +        drw_map(drw, m->barwin, 0, 0, m->ww - stw, bh);
          292  }
          293  
          294  void
          295 @@ -776,8 +874,11 @@ expose(XEvent *e)
          296          Monitor *m;
          297          XExposeEvent *ev = &e->xexpose;
          298  
          299 -        if (ev->count == 0 && (m = wintomon(ev->window)))
          300 +        if (ev->count == 0 && (m = wintomon(ev->window))) {
          301                  drawbar(m);
          302 +                if (m == selmon)
          303 +                        updatesystray();
          304 +        }
          305  }
          306  
          307  void
          308 @@ -862,10 +963,17 @@ getatomprop(Client *c, Atom prop)
          309          unsigned long dl;
          310          unsigned char *p = NULL;
          311          Atom da, atom = None;
          312 +        /* FIXME getatomprop should return the number of items and a pointer to
          313 +         * the stored data instead of this workaround */
          314 +        Atom req = XA_ATOM;
          315 +        if (prop == xatom[XembedInfo])
          316 +                req = xatom[XembedInfo];
          317  
          318 -        if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM,
          319 +        if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, req,
          320                  &da, &di, &dl, &dl, &p) == Success && p) {
          321                  atom = *(Atom *)p;
          322 +                if (da == xatom[XembedInfo] && dl == 2)
          323 +                        atom = ((Atom *)p)[1];
          324                  XFree(p);
          325          }
          326          return atom;
          327 @@ -899,6 +1007,16 @@ getstate(Window w)
          328          return result;
          329  }
          330  
          331 +unsigned int
          332 +getsystraywidth()
          333 +{
          334 +        unsigned int w = 0;
          335 +        Client *i;
          336 +        if(showsystray)
          337 +                for(i = systray->icons; i; w += i->w + systrayspacing, i = i->next) ;
          338 +        return w ? w + systrayspacing : 1;
          339 +}
          340 +
          341  int
          342  gettextprop(Window w, Atom atom, char *text, unsigned int size)
          343  {
          344 @@ -1003,7 +1121,7 @@ killclient(const Arg *arg)
          345  {
          346          if (!selmon->sel)
          347                  return;
          348 -        if (!sendevent(selmon->sel, wmatom[WMDelete])) {
          349 +        if (!sendevent(selmon->sel->win, wmatom[WMDelete], NoEventMask, wmatom[WMDelete], CurrentTime, 0 , 0, 0)) {
          350                  XGrabServer(dpy);
          351                  XSetErrorHandler(xerrordummy);
          352                  XSetCloseDownMode(dpy, DestroyAll);
          353 @@ -1091,6 +1209,12 @@ maprequest(XEvent *e)
          354  {
          355          static XWindowAttributes wa;
          356          XMapRequestEvent *ev = &e->xmaprequest;
          357 +        Client *i;
          358 +        if ((i = wintosystrayicon(ev->window))) {
          359 +                sendevent(i->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_WINDOW_ACTIVATE, 0, systray->win, XEMBED_EMBEDDED_VERSION);
          360 +                resizebarwin(selmon);
          361 +                updatesystray();
          362 +        }
          363  
          364          if (!XGetWindowAttributes(dpy, ev->window, &wa))
          365                  return;
          366 @@ -1215,6 +1339,16 @@ propertynotify(XEvent *e)
          367          Window trans;
          368          XPropertyEvent *ev = &e->xproperty;
          369  
          370 +        if ((c = wintosystrayicon(ev->window))) {
          371 +                if (ev->atom == XA_WM_NORMAL_HINTS) {
          372 +                        updatesizehints(c);
          373 +                        updatesystrayicongeom(c, c->w, c->h);
          374 +                }
          375 +                else
          376 +                        updatesystrayiconstate(c, ev);
          377 +                resizebarwin(selmon);
          378 +                updatesystray();
          379 +        }
          380          if ((ev->window == root) && (ev->atom == XA_WM_NAME))
          381                  updatestatus();
          382          else if (ev->state == PropertyDelete)
          383 @@ -1265,6 +1399,20 @@ recttomon(int x, int y, int w, int h)
          384          return r;
          385  }
          386  
          387 +void
          388 +removesystrayicon(Client *i)
          389 +{
          390 +        Client **ii;
          391 +
          392 +        if (!showsystray || !i)
          393 +                return;
          394 +        for (ii = &systray->icons; *ii && *ii != i; ii = &(*ii)->next);
          395 +        if (ii)
          396 +                *ii = i->next;
          397 +        free(i);
          398 +}
          399 +
          400 +
          401  void
          402  resize(Client *c, int x, int y, int w, int h, int interact)
          403  {
          404 @@ -1272,6 +1420,14 @@ resize(Client *c, int x, int y, int w, int h, int interact)
          405                  resizeclient(c, x, y, w, h);
          406  }
          407  
          408 +void
          409 +resizebarwin(Monitor *m) {
          410 +        unsigned int w = m->ww;
          411 +        if (showsystray && m == systraytomon(m))
          412 +                w -= getsystraywidth();
          413 +        XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, w, bh);
          414 +}
          415 +
          416  void
          417  resizeclient(Client *c, int x, int y, int w, int h)
          418  {
          419 @@ -1344,6 +1500,19 @@ resizemouse(const Arg *arg)
          420          }
          421  }
          422  
          423 +void
          424 +resizerequest(XEvent *e)
          425 +{
          426 +        XResizeRequestEvent *ev = &e->xresizerequest;
          427 +        Client *i;
          428 +
          429 +        if ((i = wintosystrayicon(ev->window))) {
          430 +                updatesystrayicongeom(i, ev->width, ev->height);
          431 +                resizebarwin(selmon);
          432 +                updatesystray();
          433 +        }
          434 +}
          435 +
          436  void
          437  restack(Monitor *m)
          438  {
          439 @@ -1433,26 +1602,36 @@ setclientstate(Client *c, long state)
          440  }
          441  
          442  int
          443 -sendevent(Client *c, Atom proto)
          444 +sendevent(Window w, Atom proto, int mask, long d0, long d1, long d2, long d3, long d4)
          445  {
          446          int n;
          447 -        Atom *protocols;
          448 +        Atom *protocols, mt;
          449          int exists = 0;
          450          XEvent ev;
          451  
          452 -        if (XGetWMProtocols(dpy, c->win, &protocols, &n)) {
          453 -                while (!exists && n--)
          454 -                        exists = protocols[n] == proto;
          455 -                XFree(protocols);
          456 +        if (proto == wmatom[WMTakeFocus] || proto == wmatom[WMDelete]) {
          457 +                mt = wmatom[WMProtocols];
          458 +                if (XGetWMProtocols(dpy, w, &protocols, &n)) {
          459 +                        while (!exists && n--)
          460 +                                exists = protocols[n] == proto;
          461 +                        XFree(protocols);
          462 +                }
          463 +        }
          464 +        else {
          465 +                exists = True;
          466 +                mt = proto;
          467          }
          468          if (exists) {
          469                  ev.type = ClientMessage;
          470 -                ev.xclient.window = c->win;
          471 -                ev.xclient.message_type = wmatom[WMProtocols];
          472 +                ev.xclient.window = w;
          473 +                ev.xclient.message_type = mt;
          474                  ev.xclient.format = 32;
          475 -                ev.xclient.data.l[0] = proto;
          476 -                ev.xclient.data.l[1] = CurrentTime;
          477 -                XSendEvent(dpy, c->win, False, NoEventMask, &ev);
          478 +                ev.xclient.data.l[0] = d0;
          479 +                ev.xclient.data.l[1] = d1;
          480 +                ev.xclient.data.l[2] = d2;
          481 +                ev.xclient.data.l[3] = d3;
          482 +                ev.xclient.data.l[4] = d4;
          483 +                XSendEvent(dpy, w, False, mask, &ev);
          484          }
          485          return exists;
          486  }
          487 @@ -1466,7 +1645,7 @@ setfocus(Client *c)
          488                          XA_WINDOW, 32, PropModeReplace,
          489                          (unsigned char *) &(c->win), 1);
          490          }
          491 -        sendevent(c, wmatom[WMTakeFocus]);
          492 +        sendevent(c->win, wmatom[WMTakeFocus], NoEventMask, wmatom[WMTakeFocus], CurrentTime, 0, 0, 0);
          493  }
          494  
          495  void
          496 @@ -1555,6 +1734,10 @@ setup(void)
          497          wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
          498          netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
          499          netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
          500 +        netatom[NetSystemTray] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_S0", False);
          501 +        netatom[NetSystemTrayOP] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_OPCODE", False);
          502 +        netatom[NetSystemTrayOrientation] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION", False);
          503 +        netatom[NetSystemTrayOrientationHorz] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION_HORZ", False);
          504          netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
          505          netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
          506          netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False);
          507 @@ -1562,6 +1745,9 @@ setup(void)
          508          netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
          509          netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
          510          netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
          511 +        xatom[Manager] = XInternAtom(dpy, "MANAGER", False);
          512 +        xatom[Xembed] = XInternAtom(dpy, "_XEMBED", False);
          513 +        xatom[XembedInfo] = XInternAtom(dpy, "_XEMBED_INFO", False);
          514          /* init cursors */
          515          cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr);
          516          cursor[CurResize] = drw_cur_create(drw, XC_sizing);
          517 @@ -1570,6 +1756,8 @@ setup(void)
          518          scheme = ecalloc(LENGTH(colors), sizeof(Clr *));
          519          for (i = 0; i < LENGTH(colors); i++)
          520                  scheme[i] = drw_scm_create(drw, colors[i], 3);
          521 +        /* init system tray */
          522 +        updatesystray();
          523          /* init bars */
          524          updatebars();
          525          updatestatus();
          526 @@ -1701,7 +1889,18 @@ togglebar(const Arg *arg)
          527  {
          528          selmon->showbar = !selmon->showbar;
          529          updatebarpos(selmon);
          530 -        XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
          531 +        resizebarwin(selmon);
          532 +        if (showsystray) {
          533 +                XWindowChanges wc;
          534 +                if (!selmon->showbar)
          535 +                        wc.y = -bh;
          536 +                else if (selmon->showbar) {
          537 +                        wc.y = 0;
          538 +                        if (!selmon->topbar)
          539 +                                wc.y = selmon->mh - bh;
          540 +                }
          541 +                XConfigureWindow(dpy, systray->win, CWY, &wc);
          542 +        }
          543          arrange(selmon);
          544  }
          545  
          546 @@ -1796,11 +1995,18 @@ unmapnotify(XEvent *e)
          547                  else
          548                          unmanage(c, 0);
          549          }
          550 +        else if ((c = wintosystrayicon(ev->window))) {
          551 +                /* KLUDGE! sometimes icons occasionally unmap their windows, but do
          552 +                 * _not_ destroy them. We map those windows back */
          553 +                XMapRaised(dpy, c->win);
          554 +                updatesystray();
          555 +        }
          556  }
          557  
          558  void
          559  updatebars(void)
          560  {
          561 +        unsigned int w;
          562          Monitor *m;
          563          XSetWindowAttributes wa = {
          564                  .override_redirect = True,
          565 @@ -1811,10 +2017,15 @@ updatebars(void)
          566          for (m = mons; m; m = m->next) {
          567                  if (m->barwin)
          568                          continue;
          569 -                m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
          570 +                w = m->ww;
          571 +                if (showsystray && m == systraytomon(m))
          572 +                        w -= getsystraywidth();
          573 +                m->barwin = XCreateWindow(dpy, root, m->wx, m->by, w, bh, 0, DefaultDepth(dpy, screen),
          574                                  CopyFromParent, DefaultVisual(dpy, screen),
          575                                  CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
          576                  XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
          577 +                if (showsystray && m == systraytomon(m))
          578 +                        XMapRaised(dpy, systray->win);
          579                  XMapRaised(dpy, m->barwin);
          580                  XSetClassHint(dpy, m->barwin, &ch);
          581          }
          582 @@ -1990,6 +2201,121 @@ updatestatus(void)
          583          if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext)))
          584                  strcpy(stext, "dwm-"VERSION);
          585          drawbar(selmon);
          586 +        updatesystray();
          587 +}
          588 +
          589 +void
          590 +updatesystrayicongeom(Client *i, int w, int h)
          591 +{
          592 +        if (i) {
          593 +                i->h = bh;
          594 +                if (w == h)
          595 +                        i->w = bh;
          596 +                else if (h == bh)
          597 +                        i->w = w;
          598 +                else
          599 +                        i->w = (int) ((float)bh * ((float)w / (float)h));
          600 +                applysizehints(i, &(i->x), &(i->y), &(i->w), &(i->h), False);
          601 +                /* force icons into the systray dimensions if they don't want to */
          602 +                if (i->h > bh) {
          603 +                        if (i->w == i->h)
          604 +                                i->w = bh;
          605 +                        else
          606 +                                i->w = (int) ((float)bh * ((float)i->w / (float)i->h));
          607 +                        i->h = bh;
          608 +                }
          609 +        }
          610 +}
          611 +
          612 +void
          613 +updatesystrayiconstate(Client *i, XPropertyEvent *ev)
          614 +{
          615 +        long flags;
          616 +        int code = 0;
          617 +
          618 +        if (!showsystray || !i || ev->atom != xatom[XembedInfo] ||
          619 +                        !(flags = getatomprop(i, xatom[XembedInfo])))
          620 +                return;
          621 +
          622 +        if (flags & XEMBED_MAPPED && !i->tags) {
          623 +                i->tags = 1;
          624 +                code = XEMBED_WINDOW_ACTIVATE;
          625 +                XMapRaised(dpy, i->win);
          626 +                setclientstate(i, NormalState);
          627 +        }
          628 +        else if (!(flags & XEMBED_MAPPED) && i->tags) {
          629 +                i->tags = 0;
          630 +                code = XEMBED_WINDOW_DEACTIVATE;
          631 +                XUnmapWindow(dpy, i->win);
          632 +                setclientstate(i, WithdrawnState);
          633 +        }
          634 +        else
          635 +                return;
          636 +        sendevent(i->win, xatom[Xembed], StructureNotifyMask, CurrentTime, code, 0,
          637 +                        systray->win, XEMBED_EMBEDDED_VERSION);
          638 +}
          639 +
          640 +void
          641 +updatesystray(void)
          642 +{
          643 +        XSetWindowAttributes wa;
          644 +        XWindowChanges wc;
          645 +        Client *i;
          646 +        Monitor *m = systraytomon(NULL);
          647 +        unsigned int x = m->mx + m->mw;
          648 +        unsigned int w = 1;
          649 +
          650 +        if (!showsystray)
          651 +                return;
          652 +        if (!systray) {
          653 +                /* init systray */
          654 +                if (!(systray = (Systray *)calloc(1, sizeof(Systray))))
          655 +                        die("fatal: could not malloc() %u bytes\n", sizeof(Systray));
          656 +                systray->win = XCreateSimpleWindow(dpy, root, x, m->by, w, bh, 0, 0, scheme[SchemeSel][ColBg].pixel);
          657 +                wa.event_mask        = ButtonPressMask | ExposureMask;
          658 +                wa.override_redirect = True;
          659 +                wa.background_pixel  = scheme[SchemeNorm][ColBg].pixel;
          660 +                XSelectInput(dpy, systray->win, SubstructureNotifyMask);
          661 +                XChangeProperty(dpy, systray->win, netatom[NetSystemTrayOrientation], XA_CARDINAL, 32,
          662 +                                PropModeReplace, (unsigned char *)&netatom[NetSystemTrayOrientationHorz], 1);
          663 +                XChangeWindowAttributes(dpy, systray->win, CWEventMask|CWOverrideRedirect|CWBackPixel, &wa);
          664 +                XMapRaised(dpy, systray->win);
          665 +                XSetSelectionOwner(dpy, netatom[NetSystemTray], systray->win, CurrentTime);
          666 +                if (XGetSelectionOwner(dpy, netatom[NetSystemTray]) == systray->win) {
          667 +                        sendevent(root, xatom[Manager], StructureNotifyMask, CurrentTime, netatom[NetSystemTray], systray->win, 0, 0);
          668 +                        XSync(dpy, False);
          669 +                }
          670 +                else {
          671 +                        fprintf(stderr, "dwm: unable to obtain system tray.\n");
          672 +                        free(systray);
          673 +                        systray = NULL;
          674 +                        return;
          675 +                }
          676 +        }
          677 +        for (w = 0, i = systray->icons; i; i = i->next) {
          678 +                /* make sure the background color stays the same */
          679 +                wa.background_pixel  = scheme[SchemeNorm][ColBg].pixel;
          680 +                XChangeWindowAttributes(dpy, i->win, CWBackPixel, &wa);
          681 +                XMapRaised(dpy, i->win);
          682 +                w += systrayspacing;
          683 +                i->x = w;
          684 +                XMoveResizeWindow(dpy, i->win, i->x, 0, i->w, i->h);
          685 +                w += i->w;
          686 +                if (i->mon != m)
          687 +                        i->mon = m;
          688 +        }
          689 +        w = w ? w + systrayspacing : 1;
          690 +        x -= w;
          691 +        XMoveResizeWindow(dpy, systray->win, x, m->by, w, bh);
          692 +        wc.x = x; wc.y = m->by; wc.width = w; wc.height = bh;
          693 +        wc.stack_mode = Above; wc.sibling = m->barwin;
          694 +        XConfigureWindow(dpy, systray->win, CWX|CWY|CWWidth|CWHeight|CWSibling|CWStackMode, &wc);
          695 +        XMapWindow(dpy, systray->win);
          696 +        XMapSubwindows(dpy, systray->win);
          697 +        /* redraw background */
          698 +        XSetForeground(dpy, drw->gc, scheme[SchemeNorm][ColBg].pixel);
          699 +        XFillRectangle(dpy, systray->win, drw->gc, 0, 0, w, bh);
          700 +        XSync(dpy, False);
          701  }
          702  
          703  void
          704 @@ -2057,6 +2383,16 @@ wintoclient(Window w)
          705          return NULL;
          706  }
          707  
          708 +Client *
          709 +wintosystrayicon(Window w) {
          710 +        Client *i = NULL;
          711 +
          712 +        if (!showsystray || !w)
          713 +                return i;
          714 +        for (i = systray->icons; i && i->win != w; i = i->next) ;
          715 +        return i;
          716 +}
          717 +
          718  Monitor *
          719  wintomon(Window w)
          720  {
          721 @@ -2110,6 +2446,22 @@ xerrorstart(Display *dpy, XErrorEvent *ee)
          722          return -1;
          723  }
          724  
          725 +Monitor *
          726 +systraytomon(Monitor *m) {
          727 +        Monitor *t;
          728 +        int i, n;
          729 +        if(!systraypinning) {
          730 +                if(!m)
          731 +                        return selmon;
          732 +                return m == selmon ? m : NULL;
          733 +        }
          734 +        for(n = 1, t = mons; t && t->next; n++, t = t->next) ;
          735 +        for(i = 1, t = mons; t && t->next && i < systraypinning; i++, t = t->next) ;
          736 +        if(systraypinningfailfirst && n < systraypinning)
          737 +                return mons;
          738 +        return t;
          739 +}
          740 +
          741  void
          742  zoom(const Arg *arg)
          743  {
          744 -- 
          745 2.17.1
          746