shift-tools patch and configuration update

config.h

@@ -102,6 +102,9 @@ static const char *nmtui[]		= { "kitty"	, "nmtui"		, NULL };
 static const char *nmcedit[]	= { "nm-connection-editor"	, NULL };
 
 static const char *top[]		= { "kitty"	, "htop" 		, NULL };
+
+#include "shift-tools.c"
+
 static const Key keys[] 		= {
 	/* modifier                     key        function        argument */
 	{ MODKEY,                       XK_t,      setlayout,      {.v = &layouts[0]} },
@@ -137,6 +140,15 @@ static const Key keys[] 		= {
 
 	{ MODKEY,						XK_Return,					zoom,		{0}					},
 
+	{ MODKEY|ControlMask,			XK_Left,					shiftview,	{.i = -1}			},
+	{ MODKEY|ControlMask,			XK_Right,					shiftview,	{.i = +1}			},
+
+	{ MODKEY|ShiftMask,				XK_Tab,						shiftview,	{.i = -1}			},
+	{ MODKEY,						XK_Tab,						shiftview,	{.i = +1}			},
+
+	{ MODKEY|ControlMask|ShiftMask,	XK_Left,					shifttag,	{.i = -1}			},
+	{ MODKEY|ControlMask|ShiftMask,	XK_Right,					shifttag,	{.i = +1}			},
+
 	{ MODKEY,						XK_w,						killclient,	{0}					},
 	{ MODKEY|ShiftMask,				XK_q,						quit,		{0}					},
 

shift-tools.c

@@ -0,0 +1,114 @@
+void
+shift(unsigned int *tag, int i)
+{
+	if (i > 0) /* left circular shift */
+		*tag = ((*tag << i) | (*tag >> (LENGTH(tags) - i)));
+	else       /* right circular shift */
+		*tag = (*tag >> (- i) | *tag << (LENGTH(tags) + i));
+}
+
+/* send a window to the next/prev tag */
+void
+shifttag(const Arg *arg)
+{
+	Arg shifted = { .ui = selmon->tagset[selmon->seltags] };
+
+	if (!selmon->clients)
+		return;
+
+	shift(&shifted.ui, arg->i);
+	tag(&shifted);
+}
+
+/* send a window to the next/prev tag that has a client, else it moves it to
+ * the next/prev one. */
+void
+shifttagclients(const Arg *arg)
+{
+	Arg shifted = { .ui = selmon->tagset[selmon->seltags] };
+	Client *c;
+	unsigned int tagmask = 0;
+
+	for (c = selmon->clients; c; c = c->next)
+		tagmask = tagmask | c->tags;
+
+	do
+		shift(&shifted.ui, arg->i);
+	while (tagmask && !(shifted.ui & tagmask));
+
+	tag(&shifted);
+}
+
+/* view the next/prev tag */
+void
+shiftview(const Arg *arg)
+{
+	Arg shifted = { .ui = selmon->tagset[selmon->seltags] };
+
+	shift(&shifted.ui, arg->i);
+	view(&shifted);
+}
+
+/* view the next/prev tag that has a client, else view the next/prev tag */
+void
+shiftviewclients(const Arg *arg)
+{
+	Arg shifted = { .ui = selmon->tagset[selmon->seltags] };
+	Client *c;
+	unsigned int tagmask = 0;
+
+	for (c = selmon->clients; c; c = c->next)
+		tagmask = tagmask | c->tags;
+
+	do
+		shift(&shifted.ui, arg->i);
+	while (tagmask && !(shifted.ui & tagmask));
+
+	view(&shifted);
+}
+
+/* move the active window to the next/prev tag and view it's new tag */
+void
+shiftboth(const Arg *arg)
+{
+	Arg shifted = { .ui = selmon->tagset[selmon->seltags] };
+
+	shift(&shifted.ui, arg->i);
+	tag(&shifted);
+	view(&shifted);
+}
+
+/* swaptags: https://dwm.suckless.org/patches/swaptags, used below */
+void
+swaptags(const Arg *arg)
+{
+	Client *c;
+	unsigned int newtag = arg->ui & TAGMASK;
+	unsigned int curtag = selmon->tagset[selmon->seltags];
+
+	if (newtag == curtag || !curtag || (curtag & (curtag-1)))
+		return;
+
+	for (c = selmon->clients; c != NULL; c = c->next) {
+		if ((c->tags & newtag) || (c->tags & curtag))
+			c->tags ^= curtag ^ newtag;
+		if (!c->tags)
+			c->tags = newtag;
+	}
+
+	//uncomment to 'view' the new swaped tag
+	//selmon->tagset[selmon->seltags] = newtag;
+
+	focus(NULL);
+	arrange(selmon);
+}
+
+/* swaps "tags" (all the clients on it) with the next/prev tag */
+void
+shiftswaptags(const Arg *arg)
+{
+	Arg shifted = { .ui = selmon->tagset[selmon->seltags] };
+
+	shift(&shifted.ui, arg->i);
+	swaptags(&shifted);
+}