1 files changed, 34 insertions, 0 deletions
diff --git a/shiftview.c b/shiftview.c
new file mode 100644
index 0000000..fa53db0
--- /dev/null
+++ b/shiftview.c
@@ -0,0 +1,34 @@
+// "arg->i" stores the number of tags to shift right (positive value)
+//          or left (negative value)
+void
+shiftview(const Arg *arg)
+{
+	Arg a;
+	Client *c;
+	bool visible = false;
+	int i = arg->i;
+	int count = 0;
+	int nextseltags, curseltags = selmon->tagset[selmon->seltags];
+
+	do {
+		if (i > 0) // left circular shift
+            nextseltags = (curseltags << i) | (curseltags >> (TAGCOUNT - i));
+        else // right circular shift
+			nextseltags = curseltags >> (-i) | (curseltags << (TAGCOUNT + i));
+
+        // Check if the tag is visible
+        wl_list_for_each(c, &clients, link) {
+            if (c->mon == selmon && nextseltags & c->tags) {
+                visible = true;
+                break;
+            }
+        }
+
+		i += arg->i;
+    } while (!visible && ++count <= TAGCOUNT);
+
+    if (count <= TAGCOUNT) {
+        a.i = nextseltags;
+        view(&a);
+    }
+}