Applied adjacenttag-skipvacant patch

2 files changed, 97 insertions, 0 deletions

diff --git a/config.h b/config.h
index b24504b..b2f4611 100644
--- a/config.h
+++ b/config.h
@@ -101,6 +101,10 @@ static const Key keys[] = {
 	{ MODKEY,                       XK_period, focusmon,       {.i = +1 } },
 	{ MODKEY|ShiftMask,             XK_comma,  tagmon,         {.i = -1 } },
 	{ MODKEY|ShiftMask,             XK_period, tagmon,         {.i = +1 } },
+	{ MODKEY,                       XK_Right,  viewnext,       {0} },
+	{ MODKEY,                       XK_Left,   viewprev,       {0} },
+	{ MODKEY|ShiftMask,             XK_Right,  tagtonext,      {0} },
+	{ MODKEY|ShiftMask,             XK_Left,   tagtoprev,      {0} },
 	{ MODKEY,                       XK_minus,  setgaps,        {.i = -1 } },
 	{ MODKEY,                       XK_equal,  setgaps,        {.i = +1 } },
 	{ MODKEY|ShiftMask,             XK_equal,  setgaps,        {.i = 0  } },
diff --git a/dwm.c b/dwm.c
index 6fc164f..72f3e89 100644
--- a/dwm.c
+++ b/dwm.c
@@ -235,8 +235,10 @@ static void maprequest(XEvent *e);
 static void monocle(Monitor *m);
 static void motionnotify(XEvent *e);
 static void movemouse(const Arg *arg);
+static unsigned int nexttag(void);
 static Client *nexttiled(Client *c);
 static void pop(Client *c);
+static unsigned int prevtag(void);
 static void propertynotify(XEvent *e);
 static void quit(const Arg *arg);
 static Monitor *recttomon(int x, int y, int w, int h);
@@ -267,6 +269,8 @@ static void spawn(const Arg *arg);
 static Monitor *systraytomon(Monitor *m);
 static void tag(const Arg *arg);
 static void tagmon(const Arg *arg);
+static void tagtonext(const Arg *arg);
+static void tagtoprev(const Arg *arg);
 static void tile(Monitor *m);
 static void togglebar(const Arg *arg);
 static void togglefloating(const Arg *arg);
@@ -290,6 +294,8 @@ static void updatetitle(Client *c);
 static void updatewindowtype(Client *c);
 static void updatewmhints(Client *c);
 static void view(const Arg *arg);
+static void viewnext(const Arg *arg);
+static void viewprev(const Arg *arg);
 static Client *wintoclient(Window w);
 static Monitor *wintomon(Window w);
 static Client *wintosystrayicon(Window w);
@@ -1480,6 +1486,29 @@ movemouse(const Arg *arg)
 	}
 }
 
+unsigned int
+nexttag(void)
+{
+	unsigned int seltag = selmon->tagset[selmon->seltags];
+	unsigned int usedtags = 0;
+	Client *c = selmon->clients;
+
+	if (!c)
+		return seltag;
+
+	/* skip vacant tags */
+	do {
+		usedtags |= c->tags;
+		c = c->next;
+	} while (c);
+
+	do {
+		seltag = seltag == (1 << (LENGTH(tags) - 1)) ? 1 : seltag << 1;
+	} while (!(seltag & usedtags));
+
+	return seltag;
+}
+
 Client *
 nexttiled(Client *c)
 {
@@ -1496,6 +1525,28 @@ pop(Client *c)
 	arrange(c->mon);
 }
 
+unsigned int
+prevtag(void)
+{
+	unsigned int seltag = selmon->tagset[selmon->seltags];
+	unsigned int usedtags = 0;
+	Client *c = selmon->clients;
+	if (!c)
+		return seltag;
+
+	/* skip vacant tags */
+	do {
+		usedtags |= c->tags;
+		c = c->next;
+	} while (c);
+
+	do {
+		seltag = seltag == 1 ? (1 << (LENGTH(tags) - 1)) : seltag >> 1;
+	} while (!(seltag & usedtags));
+
+	return seltag;
+}
+
 void
 propertynotify(XEvent *e)
 {
@@ -2047,6 +2098,36 @@ tagmon(const Arg *arg)
 }
 
 void
+tagtonext(const Arg *arg)
+{
+	unsigned int tmp;
+
+	if (selmon->sel == NULL)
+		return;
+
+	if ((tmp = nexttag()) == selmon->tagset[selmon->seltags])
+		return;
+
+	tag(&(const Arg){.ui = tmp });
+	view(&(const Arg){.ui = tmp });
+}
+
+void
+tagtoprev(const Arg *arg)
+{
+	unsigned int tmp;
+
+	if (selmon->sel == NULL)
+		return;
+
+	if ((tmp = prevtag()) == selmon->tagset[selmon->seltags])
+		return;
+
+	tag(&(const Arg){.ui = tmp });
+	view(&(const Arg){.ui = tmp });
+}
+
+void
 tile(Monitor *m)
 {
 	unsigned int i, n, h, mw, my, ty;
@@ -2733,6 +2814,18 @@ swallowingclient(Window w)
 	return NULL;
 }
 
+void
+viewnext(const Arg *arg)
+{
+	view(&(const Arg){.ui = nexttag()});
+}
+
+void
+viewprev(const Arg *arg)
+{
+	view(&(const Arg){.ui = prevtag()});
+}
+ 
 Client *
 wintoclient(Window w)
 {