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--- dwm.c.orig 2012-04-05 16:37:04.190034330 +0200
+++ dwm.c 2012-04-05 16:39:42.670832293 +0200
@@ -56,12 +56,30 @@
#define TAGMASK ((1 << LENGTH(tags)) - 1)
#define TEXTW(X) (textnw(X, strlen(X)) + dc.font.height)
+#define SYSTEM_TRAY_REQUEST_DOCK 0
+#define _NET_SYSTEM_TRAY_ORIENTATION_HORZ 0
+
+/* XEMBED messages */
+#define XEMBED_EMBEDDED_NOTIFY 0
+#define XEMBED_WINDOW_ACTIVATE 1
+#define XEMBED_FOCUS_IN 4
+#define XEMBED_MODALITY_ON 10
+
+#define XEMBED_MAPPED (1 << 0)
+#define XEMBED_WINDOW_ACTIVATE 1
+#define XEMBED_WINDOW_DEACTIVATE 2
+
+#define VERSION_MAJOR 0
+#define VERSION_MINOR 0
+#define XEMBED_EMBEDDED_VERSION (VERSION_MAJOR << 16) | VERSION_MINOR
+
/* enums */
enum { CurNormal, CurResize, CurMove, CurLast }; /* cursor */
enum { ColBorder, ColFG, ColBG, ColLast }; /* color */
-enum { NetSupported, NetWMName, NetWMState,
- NetWMFullscreen, NetActiveWindow, NetWMWindowType,
- NetWMWindowTypeDialog, NetLast }; /* EWMH atoms */
+enum { NetSupported, NetSystemTray, NetSystemTrayOP, NetSystemTrayOrientation,
+ NetWMName, NetWMState, NetWMFullscreen, NetActiveWindow, NetWMWindowType,
+ NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
+enum { Manager, Xembed, XembedInfo, XLast }; /* Xembed atoms */
enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
@@ -167,6 +185,12 @@ typedef struct {
int monitor;
} Rule;
+typedef struct Systray Systray;
+struct Systray {
+ Window win;
+ Client *icons;
+};
+
/* function declarations */
static void applyrules(Client *c);
static Bool applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact);
@@ -201,9 +225,11 @@ static void focus(Client *c);
static void focusin(XEvent *e);
static void focusmon(const Arg *arg);
static void focusstack(const Arg *arg);
+static Atom getatomprop(Client *c, Atom prop);
static unsigned long getcolor(const char *colstr);
static Bool getrootptr(int *x, int *y);
static long getstate(Window w);
+static unsigned int getsystraywidth();
static Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
static void grabbuttons(Client *c, Bool focused);
static void grabkeys(void);
@@ -222,13 +248,16 @@ static void pop(Client *);
static void propertynotify(XEvent *e);
static void quit(const Arg *arg);
static Monitor *recttomon(int x, int y, int w, int h);
+static void removesystrayicon(Client *i);
static void resize(Client *c, int x, int y, int w, int h, Bool interact);
+static void resizebarwin(Monitor *m);
static void resizeclient(Client *c, int x, int y, int w, int h);
static void resizemouse(const Arg *arg);
+static void resizerequest(XEvent *e);
static void restack(Monitor *m);
static void run(void);
static void scan(void);
-static Bool sendevent(Client *c, Atom proto);
+static Bool sendevent(Window w, Atom proto, int m, long d0, long d1, long d2, long d3, long d4);
static void sendmon(Client *c, Monitor *m);
static void setclientstate(Client *c, long state);
static void setfocus(Client *c);
@@ -257,12 +286,16 @@ static void updatebars(void);
static void updatenumlockmask(void);
static void updatesizehints(Client *c);
static void updatestatus(void);
+static void updatesystray(void);
+static void updatesystrayicongeom(Client *i, int w, int h);
+static void updatesystrayiconstate(Client *i, XPropertyEvent *ev);
static void updatewindowtype(Client *c);
static void updatetitle(Client *c);
static void updatewmhints(Client *c);
static void view(const Arg *arg);
static Client *wintoclient(Window w);
static Monitor *wintomon(Window w);
+static Client *wintosystrayicon(Window w);
static int xerror(Display *dpy, XErrorEvent *ee);
static int xerrordummy(Display *dpy, XErrorEvent *ee);
static int xerrorstart(Display *dpy, XErrorEvent *ee);
@@ -270,6 +303,8 @@ static void zoom(const Arg *arg);
static void bstack(Monitor *m);
/* variables */
+static Systray *systray = NULL;
+static unsigned long systrayorientation = _NET_SYSTEM_TRAY_ORIENTATION_HORZ;
static const char broken[] = "broken";
static char stext[256];
static int screen;
@@ -291,9 +326,10 @@ static void (*handler[LASTEvent]) (XEven
[MapRequest] = maprequest,
[MotionNotify] = motionnotify,
[PropertyNotify] = propertynotify,
+ [ResizeRequest] = resizerequest,
[UnmapNotify] = unmapnotify
};
-static Atom wmatom[WMLast], netatom[NetLast];
+static Atom wmatom[WMLast], netatom[NetLast], xatom[XLast];
static Bool running = True;
static Cursor cursor[CurLast];
static Display *dpy;
@@ -518,6 +554,11 @@ cleanup(void) {
XFreeCursor(dpy, cursor[CurMove]);
while(mons)
cleanupmon(mons);
+ if(showsystray) {
+ XUnmapWindow(dpy, systray->win);
+ XDestroyWindow(dpy, systray->win);
+ free(systray);
+ }
XSync(dpy, False);
XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
}
@@ -554,9 +595,48 @@ clearurgent(Client *c) {
void
clientmessage(XEvent *e) {
+ XWindowAttributes wa;
+ XSetWindowAttributes swa;
XClientMessageEvent *cme = &e->xclient;
Client *c = wintoclient(cme->window);
+ if(showsystray && cme->window == systray->win && cme->message_type == netatom[NetSystemTrayOP]) {
+ /* add systray icons */
+ if(cme->data.l[1] == SYSTEM_TRAY_REQUEST_DOCK) {
+ if(!(c = (Client *)calloc(1, sizeof(Client))))
+ die("fatal: could not malloc() %u bytes\n", sizeof(Client));
+ c->win = cme->data.l[2];
+ c->mon = selmon;
+ c->next = systray->icons;
+ systray->icons = c;
+ XGetWindowAttributes(dpy, c->win, &wa);
+ c->x = c->oldx = c->y = c->oldy = 0;
+ c->w = c->oldw = wa.width;
+ c->h = c->oldh = wa.height;
+ c->oldbw = wa.border_width;
+ c->bw = 0;
+ c->isfloating = True;
+ /* reuse tags field as mapped status */
+ c->tags = 1;
+ updatesizehints(c);
+ updatesystrayicongeom(c, wa.width, wa.height);
+ XAddToSaveSet(dpy, c->win);
+ XSelectInput(dpy, c->win, StructureNotifyMask | PropertyChangeMask | ResizeRedirectMask);
+ XReparentWindow(dpy, c->win, systray->win, 0, 0);
+ /* use parents background pixmap */
+ swa.background_pixmap = ParentRelative;
+ XChangeWindowAttributes(dpy, c->win, CWBackPixmap, &swa);
+ sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_EMBEDDED_NOTIFY, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
+ /* FIXME not sure if I have to send these events, too */
+ sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_FOCUS_IN, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
+ sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_WINDOW_ACTIVATE, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
+ sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_MODALITY_ON, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
+ resizebarwin(selmon);
+ updatesystray();
+ setclientstate(c, NormalState);
+ }
+ return;
+ }
if(!c)
return;
if(cme->message_type == netatom[NetWMState]) {
@@ -607,7 +687,7 @@ configurenotify(XEvent *e) {
dc.drawable = XCreatePixmap(dpy, root, sw, bh, DefaultDepth(dpy, screen));
updatebars();
for(m = mons; m; m = m->next)
- XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
+ resizebarwin(m);
focus(NULL);
arrange(NULL);
}
@@ -705,6 +785,11 @@ destroynotify(XEvent *e) {
if((c = wintoclient(ev->window)))
unmanage(c, True);
+ else if((c = wintosystrayicon(ev->window))) {
+ removesystrayicon(c);
+ resizebarwin(selmon);
+ updatesystray();
+ }
}
void
@@ -760,6 +845,7 @@ drawbar(Monitor *m) {
unsigned long *col;
Client *c;
+ resizebarwin(m);
for(c = m->clients; c; c = c->next) {
occ |= c->tags;
if(c->isurgent)
@@ -788,6 +874,9 @@ drawbar(Monitor *m) {
if(m == selmon) { /* status is only drawn on selected monitor */
dc.w = TEXTW(stext);
dc.x = m->ww - dc.w;
+ if(showsystray && m == selmon) {
+ dc.x -= getsystraywidth();
+ }
if(dc.x < x) {
dc.x = x;
dc.w = m->ww - x;
@@ -816,6 +905,7 @@ drawbars(void) {
for(m = mons; m; m = m->next)
drawbar(m);
+ updatesystray();
}
void
@@ -1006,10 +1096,17 @@ getatomprop(Client *c, Atom prop) {
unsigned long dl;
unsigned char *p = NULL;
Atom da, atom = None;
+ /* FIXME getatomprop should return the number of items and a pointer to
+ * the stored data instead of this workaround */
+ Atom req = XA_ATOM;
+ if(prop == xatom[XembedInfo])
+ req = xatom[XembedInfo];
- if(XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, XA_ATOM,
+ if(XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, req,
&da, &di, &dl, &dl, &p) == Success && p) {
atom = *(Atom *)p;
+ if(da == xatom[XembedInfo] && dl == 2)
+ atom = ((Atom *)p)[1];
XFree(p);
}
return atom;
@@ -1051,6 +1148,15 @@ getstate(Window w) {
return result;
}
+unsigned int
+getsystraywidth() {
+ unsigned int w = 0;
+ Client *i;
+ if(showsystray)
+ for(i = systray->icons; i; w += i->w + systrayspacing, i = i->next) ;
+ return w ? w + systrayspacing : 1;
+}
+
Bool
gettextprop(Window w, Atom atom, char *text, unsigned int size) {
char **list = NULL;
@@ -1185,7 +1291,7 @@ void
killclient(const Arg *arg) {
if(!selmon->sel)
return;
- if(!sendevent(selmon->sel, wmatom[WMDelete])) {
+ if(!sendevent(selmon->sel->win, wmatom[WMDelete], NoEventMask, wmatom[WMDelete], CurrentTime, 0 , 0, 0)) {
XGrabServer(dpy);
XSetErrorHandler(xerrordummy);
XSetCloseDownMode(dpy, DestroyAll);
@@ -1289,6 +1395,12 @@ void
maprequest(XEvent *e) {
static XWindowAttributes wa;
XMapRequestEvent *ev = &e->xmaprequest;
+ Client *i;
+ if((i = wintosystrayicon(ev->window))) {
+ sendevent(i->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_WINDOW_ACTIVATE, 0, systray->win, XEMBED_EMBEDDED_VERSION);
+ resizebarwin(selmon);
+ updatesystray();
+ }
if(!XGetWindowAttributes(dpy, ev->window, &wa))
return;
@@ -1404,6 +1516,16 @@ propertynotify(XEvent *e) {
Window trans;
XPropertyEvent *ev = &e->xproperty;
+ if((c = wintosystrayicon(ev->window))) {
+ if(ev->atom == XA_WM_NORMAL_HINTS) {
+ updatesizehints(c);
+ updatesystrayicongeom(c, c->w, c->h);
+ }
+ else
+ updatesystrayiconstate(c, ev);
+ resizebarwin(selmon);
+ updatesystray();
+ }
if((ev->window == root) && (ev->atom == XA_WM_NAME))
updatestatus();
else if(ev->state == PropertyDelete)
@@ -1453,12 +1575,33 @@ recttomon(int x, int y, int w, int h) {
}
void
+removesystrayicon(Client *i) {
+ Client **ii;
+
+ if(!showsystray || !i)
+ return;
+ for(ii = &systray->icons; *ii && *ii != i; ii = &(*ii)->next);
+ if(ii)
+ *ii = i->next;
+ free(i);
+}
+
+
+void
resize(Client *c, int x, int y, int w, int h, Bool interact) {
if(applysizehints(c, &x, &y, &w, &h, interact))
resizeclient(c, x, y, w, h);
}
void
+resizebarwin(Monitor *m) {
+ unsigned int w = m->ww;
+ if(showsystray && m == selmon)
+ w -= getsystraywidth();
+ XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, w, bh);
+}
+
+void
resizeclient(Client *c, int x, int y, int w, int h) {
XWindowChanges wc;
@@ -1523,6 +1666,18 @@ resizemouse(const Arg *arg) {
}
void
+resizerequest(XEvent *e) {
+ XResizeRequestEvent *ev = &e->xresizerequest;
+ Client *i;
+
+ if((i = wintosystrayicon(ev->window))) {
+ updatesystrayicongeom(i, ev->width, ev->height);
+ resizebarwin(selmon);
+ updatesystray();
+ }
+}
+
+void
restack(Monitor *m) {
Client *c;
XEvent ev;
@@ -1606,25 +1761,35 @@ setclientstate(Client *c, long state) {
}
Bool
-sendevent(Client *c, Atom proto) {
+sendevent(Window w, Atom proto, int mask, long d0, long d1, long d2, long d3, long d4) {
int n;
- Atom *protocols;
+ Atom *protocols, mt;
Bool exists = False;
XEvent ev;
- if(XGetWMProtocols(dpy, c->win, &protocols, &n)) {
- while(!exists && n--)
- exists = protocols[n] == proto;
- XFree(protocols);
+ if(proto == wmatom[WMTakeFocus] || proto == wmatom[WMDelete]) {
+ mt = wmatom[WMProtocols];
+ if(XGetWMProtocols(dpy, w, &protocols, &n)) {
+ while(!exists && n--)
+ exists = protocols[n] == proto;
+ XFree(protocols);
+ }
+ }
+ else {
+ exists = True;
+ mt = proto;
}
if(exists) {
ev.type = ClientMessage;
- ev.xclient.window = c->win;
- ev.xclient.message_type = wmatom[WMProtocols];
+ ev.xclient.window = w;
+ ev.xclient.message_type = mt;
ev.xclient.format = 32;
- ev.xclient.data.l[0] = proto;
- ev.xclient.data.l[1] = CurrentTime;
- XSendEvent(dpy, c->win, False, NoEventMask, &ev);
+ ev.xclient.data.l[0] = d0;
+ ev.xclient.data.l[1] = d1;
+ ev.xclient.data.l[2] = d2;
+ ev.xclient.data.l[3] = d3;
+ ev.xclient.data.l[4] = d4;
+ XSendEvent(dpy, w, False, mask, &ev);
}
return exists;
}
@@ -1633,7 +1798,7 @@ void
setfocus(Client *c) {
if(!c->neverfocus)
XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
- sendevent(c, wmatom[WMTakeFocus]);
+ sendevent(c->win, wmatom[WMTakeFocus], NoEventMask, wmatom[WMTakeFocus], CurrentTime, 0, 0, 0);
}
void
@@ -1713,11 +1878,17 @@ setup(void) {
wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
+ netatom[NetSystemTray] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_S0", False);
+ netatom[NetSystemTrayOP] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_OPCODE", False);
+ netatom[NetSystemTrayOrientation] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION", False);
netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
+ xatom[Manager] = XInternAtom(dpy, "MANAGER", False);
+ xatom[Xembed] = XInternAtom(dpy, "_XEMBED", False);
+ xatom[XembedInfo] = XInternAtom(dpy, "_XEMBED_INFO", False);
/* init cursors */
cursor[CurNormal] = XCreateFontCursor(dpy, XC_left_ptr);
cursor[CurResize] = XCreateFontCursor(dpy, XC_sizing);
@@ -1733,6 +1904,8 @@ setup(void) {
XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter);
if(!dc.font.set)
XSetFont(dpy, dc.gc, dc.font.xfont->fid);
+ /* init system tray */
+ updatesystray();
/* init bars */
updatebars();
updatestatus();
@@ -1841,7 +2014,18 @@ void
togglebar(const Arg *arg) {
selmon->showbar = !selmon->showbar;
updatebarpos(selmon);
- XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
+ resizebarwin(selmon);
+ if(showsystray) {
+ XWindowChanges wc;
+ if(!selmon->showbar)
+ wc.y = -bh;
+ else if(selmon->showbar) {
+ wc.y = 0;
+ if(!selmon->topbar)
+ wc.y = selmon->mh - bh;
+ }
+ XConfigureWindow(dpy, systray->win, CWY, &wc);
+ }
arrange(selmon);
}
@@ -1964,18 +2148,28 @@ unmapnotify(XEvent *e) {
else
unmanage(c, False);
}
+ else if((c = wintosystrayicon(ev->window))) {
+ removesystrayicon(c);
+ resizebarwin(selmon);
+ updatesystray();
+ }
}
void
updatebars(void) {
+ unsigned int w;
Monitor *m;
+
XSetWindowAttributes wa = {
.override_redirect = True,
.background_pixmap = ParentRelative,
.event_mask = ButtonPressMask|ExposureMask
};
for(m = mons; m; m = m->next) {
- m->barwin = XCreateWindow(dpy, root, m->wx, m->by, m->ww, bh, 0, DefaultDepth(dpy, screen),
+ w = m->ww;
+ if(showsystray && m == selmon)
+ w -= getsystraywidth();
+ m->barwin = XCreateWindow(dpy, root, m->wx, m->by, w, bh, 0, DefaultDepth(dpy, screen),
CopyFromParent, DefaultVisual(dpy, screen),
CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
XDefineCursor(dpy, m->barwin, cursor[CurNormal]);
@@ -2159,6 +2353,104 @@ updatestatus(void) {
}
void
+updatesystrayicongeom(Client *i, int w, int h) {
+ if(i) {
+ i->h = bh;
+ if(w == h)
+ i->w = bh;
+ else if(h == bh)
+ i->w = w;
+ else
+ i->w = (int) ((float)bh * ((float)w / (float)h));
+ applysizehints(i, &(i->x), &(i->y), &(i->w), &(i->h), False);
+ /* force icons into the systray dimenons if they don't want to */
+ if(i->h > bh) {
+ if(i->w == i->h)
+ i->w = bh;
+ else
+ i->w = (int) ((float)bh * ((float)i->w / (float)i->h));
+ i->h = bh;
+ }
+ }
+}
+
+void
+updatesystrayiconstate(Client *i, XPropertyEvent *ev) {
+ long flags;
+ int code = 0;
+
+ if(!showsystray || !i || ev->atom != xatom[XembedInfo] ||
+ !(flags = getatomprop(i, xatom[XembedInfo])))
+ return;
+
+ if(flags & XEMBED_MAPPED && !i->tags) {
+ i->tags = 1;
+ code = XEMBED_WINDOW_ACTIVATE;
+ XMapRaised(dpy, i->win);
+ setclientstate(i, NormalState);
+ }
+ else if(!(flags & XEMBED_MAPPED) && i->tags) {
+ i->tags = 0;
+ code = XEMBED_WINDOW_DEACTIVATE;
+ XUnmapWindow(dpy, i->win);
+ setclientstate(i, WithdrawnState);
+ }
+ else
+ return;
+ sendevent(i->win, xatom[Xembed], StructureNotifyMask, CurrentTime, code, 0,
+ systray->win, XEMBED_EMBEDDED_VERSION);
+}
+
+void
+updatesystray(void) {
+ XSetWindowAttributes wa;
+ Client *i;
+ unsigned int x = selmon->mx + selmon->mw;
+ unsigned int w = 1;
+
+ if(!showsystray)
+ return;
+ if(!systray) {
+ /* init systray */
+ if(!(systray = (Systray *)calloc(1, sizeof(Systray))))
+ die("fatal: could not malloc() %u bytes\n", sizeof(Systray));
+ systray->win = XCreateSimpleWindow(dpy, root, x, selmon->by, w, bh, 0, 0, dc.colors[1][ColBG]);
+ wa.event_mask = ButtonPressMask | ExposureMask;
+ wa.override_redirect = True;
+ wa.background_pixmap = ParentRelative;
+ wa.background_pixel = dc.colors[0][ColBG];
+ XSelectInput(dpy, systray->win, SubstructureNotifyMask);
+ XChangeProperty(dpy, systray->win, netatom[NetSystemTrayOrientation], XA_CARDINAL, 32,
+ PropModeReplace, (unsigned char *)&systrayorientation, 1);
+ XChangeWindowAttributes(dpy, systray->win, CWEventMask | CWOverrideRedirect | CWBackPixel, &wa);
+ XMapRaised(dpy, systray->win);
+ XSetSelectionOwner(dpy, netatom[NetSystemTray], systray->win, CurrentTime);
+ if(XGetSelectionOwner(dpy, netatom[NetSystemTray]) == systray->win) {
+ sendevent(root, xatom[Manager], StructureNotifyMask, CurrentTime, netatom[NetSystemTray], systray->win, 0, 0);
+ XSync(dpy, False);
+ }
+ else {
+ fprintf(stderr, "dwm: unable to obtain system tray.\n");
+ free(systray);
+ systray = NULL;
+ return;
+ }
+ }
+ for(w = 0, i = systray->icons; i; i = i->next) {
+ XMapRaised(dpy, i->win);
+ w += systrayspacing;
+ XMoveResizeWindow(dpy, i->win, (i->x = w), 0, i->w, i->h);
+ w += i->w;
+ if(i->mon != selmon)
+ i->mon = selmon;
+ }
+ w = w ? w + systrayspacing : 1;
+ x -= w;
+ XMoveResizeWindow(dpy, systray->win, x, selmon->by, w, bh);
+ XSync(dpy, False);
+}
+
+void
updatewindowtype(Client *c) {
Atom state = getatomprop(c, netatom[NetWMState]);
Atom wtype = getatomprop(c, netatom[NetWMWindowType]);
@@ -2245,6 +2537,16 @@ wintomon(Window w) {
return selmon;
}
+Client *
+wintosystrayicon(Window w) {
+ Client *i = NULL;
+
+ if(!showsystray || !w)
+ return i;
+ for(i = systray->icons; i && i->win != w; i = i->next) ;
+ return i;
+}
+
/* There's no way to check accesses to destroyed windows, thus those cases are
* ignored (especially on UnmapNotify's). Other types of errors call Xlibs
* default error handler, which may call exit. */