patch: push up/down

pushup and pushdown provide a way to move clients inside the clients
list.

2 files changed, 58 insertions, 0 deletions

diff --git a/config.def.h b/config.def.h
index a3b6c1a..96df03e 100644
--- a/config.def.h
+++ b/config.def.h
@@ -87,6 +87,8 @@ static const Key keys[] = {
 	{ MODKEY,                       XK_d,      incnmaster,     {.i = -1 } },
 	{ MODKEY,                       XK_h,      setmfact,       {.f = -0.05} },
 	{ MODKEY,                       XK_l,      setmfact,       {.f = +0.05} },
+    { MODKEY|ShiftMask,             XK_j,      pushdown,       {0} },
+    { MODKEY|ShiftMask,             XK_k,      pushup,         {0} },
 	{ MODKEY,                       XK_Return, zoom,           {0} },
 	{ MODKEY,                       XK_Tab,    view,           {0} },
 	{ MODKEY,                       XK_q,      killclient,     {0} },
diff --git a/dwm.c b/dwm.c
index 7024d76..d163d0b 100644
--- a/dwm.c
+++ b/dwm.c
@@ -191,7 +191,10 @@ static void motionnotify(XEvent *e);
 static void movemouse(const Arg *arg);
 static Client *nexttiled(Client *c);
 static void pop(Client *c);
+static Client *prevtiled(Client *c);
 static void propertynotify(XEvent *e);
+static void pushdown(const Arg *arg);
+static void pushup(const Arg *arg);
 static void quit(const Arg *arg);
 static Monitor *recttomon(int x, int y, int w, int h);
 static void resize(Client *c, int x, int y, int w, int h, int interact);
@@ -1269,6 +1272,16 @@ pop(Client *c)
 	arrange(c->mon);
 }
 
+Client *
+prevtiled(Client *c) {
+	Client *p, *r;
+
+	for(p = selmon->clients, r = NULL; p && p != c; p = p->next)
+		if(!p->isfloating && ISVISIBLE(p))
+			r = p;
+	return r;
+}
+
 void
 propertynotify(XEvent *e)
 {
@@ -1307,6 +1320,49 @@ propertynotify(XEvent *e)
 }
 
 void
+pushdown(const Arg *arg) {
+	Client *sel = selmon->sel, *c;
+
+	if(!sel || sel->isfloating)
+		return;
+	if((c = nexttiled(sel->next))) {
+		detach(sel);
+		sel->next = c->next;
+		c->next = sel;
+	} else {
+		detach(sel);
+		attach(sel);
+	}
+	focus(sel);
+	arrange(selmon);
+}
+
+void
+pushup(const Arg *arg) {
+	Client *sel = selmon->sel, *c;
+
+	if(!sel || sel->isfloating)
+		return;
+	if((c = prevtiled(sel))) {
+		detach(sel);
+		sel->next = c;
+		if(selmon->clients == c)
+			selmon->clients = sel;
+		else {
+			for(c = selmon->clients; c->next != sel->next; c = c->next);
+			c->next = sel;
+		}
+	} else {
+		for(c = sel; c->next; c = c->next);
+		detach(sel);
+		sel->next = NULL;
+		c->next = sel;
+	}
+	focus(sel);
+	arrange(selmon);
+}
+
+void
 quit(const Arg *arg)
 {
 	running = 0;