added viewprev() and viewnext() for simple tag navigation

gerrits · Sep 12, 2011 · 04da24e · 04da24e
1 parent 08c51ce
commit 04da24e
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Showing 2 changed files with 22 additions and 0 deletions.
diff --git a/src/config.h b/src/config.h
@@ -71,6 +71,8 @@ static Key keys[] = {
 	{ MODKEY,                       XK_period, focusmon,       {.i = +1 } },
 	{ MODKEY|ShiftMask,             XK_comma,  tagmon,         {.i = -1 } },
 	{ MODKEY|ShiftMask,             XK_period, tagmon,         {.i = +1 } },
+    { MODKEY,                       XK_Left,   viewprev,       {0} },
+    { MODKEY,                       XK_Right,  viewnext,       {0} },
 	TAGKEYS(                        XK_1,                      0)
 	TAGKEYS(                        XK_2,                      1)
 	TAGKEYS(                        XK_3,                      2)

diff --git a/src/dwm.c b/src/dwm.c
@@ -238,6 +238,8 @@ static void updatestatus(void);
 static void updatetitle(Client *c);
 static void updatewmhints(Client *c);
 static void view(const Arg *arg);
+static void viewnext(void);
+static void viewprev(void);
 static Client *wintoclient(Window w);
 static Monitor *wintomon(Window w);
 static int xerror(Display *dpy, XErrorEvent *ee);
@@ -1975,6 +1977,24 @@ view(const Arg *arg) {
 	arrange(selmon);
 }
 
+void
+viewprev(void) {
+    if ( selmon->tagset[selmon->seltags] & (unsigned int) 1 )
+        selmon->tagset[selmon->seltags] = ((unsigned int) 1 << (LENGTH(tags) -1));
+    else
+        selmon->tagset[selmon->seltags] = selmon->tagset[selmon->seltags] >> 1;
+    arrange(selmon);
+}
+
+void
+viewnext(void) {
+    if ( selmon->tagset[selmon->seltags] & ((unsigned int) 1 << (LENGTH(tags) -1)))
+        selmon->tagset[selmon->seltags] = (unsigned int) 1;
+    else
+        selmon->tagset[selmon->seltags] = selmon->tagset[selmon->seltags] << 1;
+    arrange(selmon);
+}
+
 Client *
 wintoclient(Window w) {
 	Client *c;