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-rw-r--r--dwm-anybar-20210926-a786211.diff335
1 files changed, 335 insertions, 0 deletions
diff --git a/dwm-anybar-20210926-a786211.diff b/dwm-anybar-20210926-a786211.diff
new file mode 100644
index 0000000..3dcf629
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+++ b/dwm-anybar-20210926-a786211.diff
@@ -0,0 +1,335 @@
+From c80bbb393b741bfa428fdbebc0027e6ff2c4b69d Mon Sep 17 00:00:00 2001
+From: mihirlad55 <mihirlad55@gmail.com>
+Date: Sun, 26 Sep 2021 00:36:41 +0000
+Subject: [PATCH] Add support for managing external status bars
+
+This patch allows dwm to manage other status bars such as
+polybar/lemonbar without them needing to set override-redirect. For
+all intents and purposes, DWM treats this bar as if it were its own
+and as a result helps the status bar and DWM live in harmony.
+
+This has a few advantages
+* The bar does not block fullscreen windows
+* DWM makes room for the status bar, so windows do not overlap the bar
+* The bar can be hidden/killed and DWM will not keep an unsightly gap
+ where the bar was
+* DWM receives EnterNotify events when your cursor enters the bar
+
+To use another status bar, set usealtbar to 1 in your config.h and set
+altbarclass to the class name (can be found using xprop) to the class
+name of your status bar. Also make sure that if your status bar will
+be displayed on top, topbar is set to 1 in your config, and if it will
+be displayed on bottom, topbar is set to 0. This patch does not
+support bars that are not docked at the top or at the bottom of your
+monitor.
+
+The patch is developed at https://github.com/mihirlad55/dwm-anybar
+---
+ config.def.h | 3 ++
+ dwm.c | 114 ++++++++++++++++++++++++++++++++++++++++++++-------
+ 2 files changed, 103 insertions(+), 14 deletions(-)
+
+diff --git a/config.def.h b/config.def.h
+index a2ac963..04ba79c 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -5,6 +5,9 @@ static const unsigned int borderpx = 1; /* border pixel of windows */
+ static const unsigned int snap = 32; /* snap pixel */
+ static const int showbar = 1; /* 0 means no bar */
+ static const int topbar = 1; /* 0 means bottom bar */
++static const int usealtbar = 1; /* 1 means use non-dwm status bar */
++static const char *altbarclass = "Polybar"; /* Alternate bar class name */
++static const char *altbarcmd = "$HOME/bar.sh"; /* Alternate bar launch command */
+ static const char *fonts[] = { "monospace:size=10" };
+ static const char dmenufont[] = "monospace:size=10";
+ static const char col_gray1[] = "#222222";
+diff --git a/dwm.c b/dwm.c
+index 5e4d494..5b83358 100644
+--- a/dwm.c
++++ b/dwm.c
+@@ -47,8 +47,8 @@
+ /* macros */
+ #define BUTTONMASK (ButtonPressMask|ButtonReleaseMask)
+ #define CLEANMASK(mask) (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
+-#define INTERSECT(x,y,w,h,m) (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \
+- * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy)))
++#define INTERSECT(x,y,w,h,m) (MAX(0, MIN((x)+(w),(m)->mx+(m)->mw) - MAX((x),(m)->mx)) \
++ * MAX(0, MIN((y)+(h),(m)->my+(m)->mh) - MAX((y),(m)->my)))
+ #define ISVISIBLE(C) ((C->tags & C->mon->tagset[C->mon->seltags]))
+ #define LENGTH(X) (sizeof X / sizeof X[0])
+ #define MOUSEMASK (BUTTONMASK|PointerMotionMask)
+@@ -116,7 +116,7 @@ struct Monitor {
+ float mfact;
+ int nmaster;
+ int num;
+- int by; /* bar geometry */
++ int by, bh; /* bar geometry */
+ int mx, my, mw, mh; /* screen size */
+ int wx, wy, ww, wh; /* window area */
+ unsigned int seltags;
+@@ -179,6 +179,7 @@ static void incnmaster(const Arg *arg);
+ static void keypress(XEvent *e);
+ static void killclient(const Arg *arg);
+ static void manage(Window w, XWindowAttributes *wa);
++static void managealtbar(Window win, XWindowAttributes *wa);
+ static void mappingnotify(XEvent *e);
+ static void maprequest(XEvent *e);
+ static void monocle(Monitor *m);
+@@ -207,6 +208,7 @@ static void seturgent(Client *c, int urg);
+ static void showhide(Client *c);
+ static void sigchld(int unused);
+ static void spawn(const Arg *arg);
++static void spawnbar();
+ static void tag(const Arg *arg);
+ static void tagmon(const Arg *arg);
+ static void tile(Monitor *);
+@@ -216,6 +218,7 @@ static void toggletag(const Arg *arg);
+ static void toggleview(const Arg *arg);
+ static void unfocus(Client *c, int setfocus);
+ static void unmanage(Client *c, int destroyed);
++static void unmanagealtbar(Window w);
+ static void unmapnotify(XEvent *e);
+ static void updatebarpos(Monitor *m);
+ static void updatebars(void);
+@@ -230,6 +233,7 @@ static void updatewmhints(Client *c);
+ static void view(const Arg *arg);
+ static Client *wintoclient(Window w);
+ static Monitor *wintomon(Window w);
++static int wmclasscontains(Window win, const char *class, const char *name);
+ static int xerror(Display *dpy, XErrorEvent *ee);
+ static int xerrordummy(Display *dpy, XErrorEvent *ee);
+ static int xerrorstart(Display *dpy, XErrorEvent *ee);
+@@ -505,8 +509,10 @@ cleanupmon(Monitor *mon)
+ for (m = mons; m && m->next != mon; m = m->next);
+ m->next = mon->next;
+ }
+- XUnmapWindow(dpy, mon->barwin);
+- XDestroyWindow(dpy, mon->barwin);
++ if (!usealtbar) {
++ XUnmapWindow(dpy, mon->barwin);
++ XDestroyWindow(dpy, mon->barwin);
++ }
+ free(mon);
+ }
+
+@@ -568,7 +574,7 @@ configurenotify(XEvent *e)
+ for (c = m->clients; c; c = c->next)
+ if (c->isfullscreen)
+ resizeclient(c, m->mx, m->my, m->mw, m->mh);
+- XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, bh);
++ XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, m->ww, m->bh);
+ }
+ focus(NULL);
+ arrange(NULL);
+@@ -639,6 +645,7 @@ createmon(void)
+ m->nmaster = nmaster;
+ m->showbar = showbar;
+ m->topbar = topbar;
++ m->bh = bh;
+ m->lt[0] = &layouts[0];
+ m->lt[1] = &layouts[1 % LENGTH(layouts)];
+ strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
+@@ -649,10 +656,13 @@ void
+ destroynotify(XEvent *e)
+ {
+ Client *c;
++ Monitor *m;
+ XDestroyWindowEvent *ev = &e->xdestroywindow;
+
+ if ((c = wintoclient(ev->window)))
+ unmanage(c, 1);
++ else if (usealtbar && (m = wintomon(ev->window)) && m->barwin == ev->window)
++ unmanagealtbar(ev->window);
+ }
+
+ void
+@@ -696,6 +706,9 @@ dirtomon(int dir)
+ void
+ drawbar(Monitor *m)
+ {
++ if (usealtbar)
++ return;
++
+ int x, w, tw = 0;
+ int boxs = drw->fonts->h / 9;
+ int boxw = drw->fonts->h / 6 + 2;
+@@ -1077,6 +1090,25 @@ manage(Window w, XWindowAttributes *wa)
+ focus(NULL);
+ }
+
++void
++managealtbar(Window win, XWindowAttributes *wa)
++{
++ Monitor *m;
++ if (!(m = recttomon(wa->x, wa->y, wa->width, wa->height)))
++ return;
++
++ m->barwin = win;
++ m->by = wa->y;
++ bh = m->bh = wa->height;
++ updatebarpos(m);
++ arrange(m);
++ XSelectInput(dpy, win, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
++ XMoveResizeWindow(dpy, win, wa->x, wa->y, wa->width, wa->height);
++ XMapWindow(dpy, win);
++ XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend,
++ (unsigned char *) &win, 1);
++}
++
+ void
+ mappingnotify(XEvent *e)
+ {
+@@ -1097,7 +1129,9 @@ maprequest(XEvent *e)
+ return;
+ if (wa.override_redirect)
+ return;
+- if (!wintoclient(ev->window))
++ if (usealtbar && wmclasscontains(ev->window, altbarclass, ""))
++ managealtbar(ev->window, &wa);
++ else if (!wintoclient(ev->window))
+ manage(ev->window, &wa);
+ }
+
+@@ -1393,7 +1427,9 @@ scan(void)
+ if (!XGetWindowAttributes(dpy, wins[i], &wa)
+ || wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
+ continue;
+- if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
++ if (usealtbar && wmclasscontains(wins[i], altbarclass, ""))
++ managealtbar(wins[i], &wa);
++ else if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
+ manage(wins[i], &wa);
+ }
+ for (i = 0; i < num; i++) { /* now the transients */
+@@ -1546,7 +1582,7 @@ setup(void)
+ if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
+ die("no fonts could be loaded.");
+ lrpad = drw->fonts->h;
+- bh = drw->fonts->h + 2;
++ bh = usealtbar ? 0 : drw->fonts->h + 2;
+ updategeom();
+ /* init atoms */
+ utf8string = XInternAtom(dpy, "UTF8_STRING", False);
+@@ -1595,6 +1631,7 @@ setup(void)
+ XSelectInput(dpy, root, wa.event_mask);
+ grabkeys();
+ focus(NULL);
++ spawnbar();
+ }
+
+
+@@ -1653,6 +1690,13 @@ spawn(const Arg *arg)
+ }
+ }
+
++void
++spawnbar()
++{
++ if (*altbarcmd)
++ system(altbarcmd);
++}
++
+ void
+ tag(const Arg *arg)
+ {
+@@ -1704,7 +1748,7 @@ togglebar(const Arg *arg)
+ {
+ selmon->showbar = !selmon->showbar;
+ updatebarpos(selmon);
+- XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, bh);
++ XMoveResizeWindow(dpy, selmon->barwin, selmon->wx, selmon->by, selmon->ww, selmon->bh);
+ arrange(selmon);
+ }
+
+@@ -1787,10 +1831,26 @@ unmanage(Client *c, int destroyed)
+ arrange(m);
+ }
+
++void
++unmanagealtbar(Window w)
++{
++ Monitor *m = wintomon(w);
++
++ if (!m)
++ return;
++
++ m->barwin = 0;
++ m->by = 0;
++ m->bh = 0;
++ updatebarpos(m);
++ arrange(m);
++}
++
+ void
+ unmapnotify(XEvent *e)
+ {
+ Client *c;
++ Monitor *m;
+ XUnmapEvent *ev = &e->xunmap;
+
+ if ((c = wintoclient(ev->window))) {
+@@ -1798,12 +1858,16 @@ unmapnotify(XEvent *e)
+ setclientstate(c, WithdrawnState);
+ else
+ unmanage(c, 0);
+- }
++ } else if (usealtbar && (m = wintomon(ev->window)) && m->barwin == ev->window)
++ unmanagealtbar(ev->window);
+ }
+
+ void
+ updatebars(void)
+ {
++ if (usealtbar)
++ return;
++
+ Monitor *m;
+ XSetWindowAttributes wa = {
+ .override_redirect = True,
+@@ -1829,11 +1893,11 @@ updatebarpos(Monitor *m)
+ m->wy = m->my;
+ m->wh = m->mh;
+ if (m->showbar) {
+- m->wh -= bh;
++ m->wh -= m->bh;
+ m->by = m->topbar ? m->wy : m->wy + m->wh;
+- m->wy = m->topbar ? m->wy + bh : m->wy;
++ m->wy = m->topbar ? m->wy + m->bh : m->wy;
+ } else
+- m->by = -bh;
++ m->by = -m->bh;
+ }
+
+ void
+@@ -2077,6 +2141,28 @@ wintomon(Window w)
+ return selmon;
+ }
+
++int
++wmclasscontains(Window win, const char *class, const char *name)
++{
++ XClassHint ch = { NULL, NULL };
++ int res = 1;
++
++ if (XGetClassHint(dpy, win, &ch)) {
++ if (ch.res_name && strstr(ch.res_name, name) == NULL)
++ res = 0;
++ if (ch.res_class && strstr(ch.res_class, class) == NULL)
++ res = 0;
++ } else
++ res = 0;
++
++ if (ch.res_class)
++ XFree(ch.res_class);
++ if (ch.res_name)
++ XFree(ch.res_name);
++
++ return res;
++}
++
+ /* 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. */
+--
+2.33.0
+
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