Adding focusmaster-return patch variant ref. #398

README.md

@@ -19,6 +19,8 @@ Browsing patches? There is a [map of patches](https://coggle.it/diagram/X9IiSSM6
 
 ### Changelog:
 
+2023-11-12 - Added the focusmaster-return patch variant
+
 2023-06-27 - Added the focusfollowmouse and unmanaged patches
 
 2023-06-25 - Added the toggletopbar patch
@@ -442,6 +444,10 @@ Browsing patches? There is a [map of patches](https://coggle.it/diagram/X9IiSSM6
    - [focusmaster](https://dwm.suckless.org/patches/focusmaster/)
       - a simple patch that just puts focus back to the master client
 
+   - [focusmaster-return](https://dwm.suckless.org/patches/focusmaster/)
+      - a simple patch that just puts focus back to the master client
+      - additionally allows focus to be switched back to the previous client
+
    - [focusonclick](https://dwm.suckless.org/patches/focusonclick/)
       - this patch makes you switch focus only by mouse click and not sloppy (focus follows mouse
         pointer)

config.def.h

@@ -914,9 +914,9 @@ static const Key keys[] = {
 	#if TAB_PATCH
 	{ MODKEY|ControlMask,           XK_b,          tabmode,                {-1} },
 	#endif // TAB_PATCH
-	#if FOCUSMASTER_PATCH
+	#if FOCUSMASTER_PATCH || FOCUSMASTER_RETURN_PATCH
 	{ MODKEY|ControlMask,           XK_space,      focusmaster,            {0} },
-	#endif // FOCUSMASTER_PATCH
+	#endif // FOCUSMASTER_PATCH / FOCUSMASTER_RETURN_PATCH
 	#if STACKER_PATCH
 	STACKKEYS(MODKEY,                              focus)
 	STACKKEYS(MODKEY|ShiftMask,                    push)

dwm.c

@@ -504,6 +504,9 @@ struct Monitor {
 	Client *clients;
 	Client *sel;
 	Client *stack;
+	#if FOCUSMASTER_RETURN_PATCH
+	Client *tagmarked[32];
+	#endif // FOCUSMASTER_RETURN_PATCH
 	Monitor *next;
 	Bar *bar;
 	const Layout *lt[2];
@@ -1818,6 +1821,11 @@ detach(Client *c)
 	#if SEAMLESS_RESTART_PATCH
 	c->idx = 0;
 	#endif // SEAMLESS_RESTART_PATCH
+	#if FOCUSMASTER_RETURN_PATCH
+	for (int i = 1; i < NUMTAGS; i++)
+		if (c == c->mon->tagmarked[i])
+			c->mon->tagmarked[i] = NULL;
+	#endif // FOCUSMASTER_RETURN_PATCH
 
 	for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
 	*tc = c->next;
@@ -2846,6 +2854,13 @@ nexttiled(Client *c)
 void
 pop(Client *c)
 {
+	#if FOCUSMASTER_RETURN_PATCH
+	int i;
+	for (i = 0; !(selmon->tagset[selmon->seltags] & 1 << i); i++);
+	i++;
+
+	c->mon->tagmarked[i] = nexttiled(c->mon->clients);
+	#endif // FOCUSMASTER_RETURN_PATCH
 	detach(c);
 	attach(c);
 	focus(c);
@@ -5086,6 +5101,9 @@ void
 zoom(const Arg *arg)
 {
 	Client *c = selmon->sel;
+	#if FOCUSMASTER_RETURN_PATCH && ZOOMSWAP_PATCH
+	int i;
+	#endif // FOCUSMASTER_RETURN_PATCH
 	if (arg && arg->v)
 		c = (Client*)arg->v;
 	if (!c)
@@ -5139,6 +5157,12 @@ zoom(const Arg *arg)
 	cold = nexttiled(c->mon->clients);
 	if (c != cold && !at)
 		at = findbefore(c);
+	#if FOCUSMASTER_RETURN_PATCH
+	for (i = 0; !(selmon->tagset[selmon->seltags] & 1 << i); i++);
+	i++;
+
+	c->mon->tagmarked[i] = cold;
+	#endif // FOCUSMASTER_RETURN_PATCH
 	detach(c);
 	attach(c);
 	/* swap windows instead of pushing the previous one down */

patch/focusmaster.c

@@ -1,14 +1,41 @@
 void
 focusmaster(const Arg *arg)
 {
-	Client *c;
+	Client *master;
+	Monitor *m = selmon;
+	#if FOCUSMASTER_RETURN_PATCH
+	int i;
+	#endif // FOCUSMASTER_RETURN_PATCH
 
-	if (selmon->nmaster < 1)
+	if (m->nmaster < 1)
 		return;
+	#if !FAKEFULLSCREEN_PATCH
+	#if FAKEFULLSCREEN_CLIENT_PATCH
+	if (!m->sel || (m->sel->isfullscreen && m->sel->fakefullscreen != 1 && lockfullscreen))
+		return;
+	#else
+	if (!m->sel || (m->sel->isfullscreen && lockfullscreen))
+		return;
+	#endif // FAKEFULLSCREEN_CLIENT_PATCH
+	#endif // FAKEFULLSCREEN_PATCH
 
-	c = nexttiled(selmon->clients);
+	master = nexttiled(m->clients);
 
-	if (c)
-		focus(c);
-}
+	if (!master)
+		return;
+
+	#if FOCUSMASTER_RETURN_PATCH
+	for (i = 0; !(m->tagset[m->seltags] & 1 << i); i++);
+	i++;
 
+	if (m->sel == master) {
+		if (m->tagmarked[i] && ISVISIBLE(m->tagmarked[i]))
+			focus(m->tagmarked[i]);
+	} else {
+		m->tagmarked[i] = m->sel;
+		focus(master);
+	}
+	#else
+	focus(master);
+	#endif // FOCUSMASTER_RETURN_PATCH
+}

patch/include.c

@@ -154,7 +154,7 @@
 #if FOCUSFOLLOWMOUSE_PATCH
 #include "focusfollowmouse.c"
 #endif
-#if FOCUSMASTER_PATCH
+#if FOCUSMASTER_PATCH || FOCUSMASTER_RETURN_PATCH
 #include "focusmaster.c"
 #endif
 #if FOCUSURGENT_PATCH

patch/include.h

@@ -157,7 +157,7 @@
 #if FOCUSFOLLOWMOUSE_PATCH
 #include "focusfollowmouse.h"
 #endif
-#if FOCUSMASTER_PATCH
+#if FOCUSMASTER_PATCH || FOCUSMASTER_RETURN_PATCH
 #include "focusmaster.h"
 #endif
 #if FOCUSURGENT_PATCH

patches.def.h

@@ -657,6 +657,12 @@
  */
 #define FOCUSMASTER_PATCH 0
 
+/* A variant of the focusmaster patch that additionally allows the focus to be returned to the
+ * previously focused client
+ * https://dwm.suckless.org/patches/focusmaster/
+ */
+#define FOCUSMASTER_RETURN_PATCH 0
+
 /* Switch focus only by mouse click and not sloppy (focus follows mouse pointer).
  * https://dwm.suckless.org/patches/focusonclick/
  */