feat(i3): Conditional wrap around on scroll

Ref #242

src/utils/i3.cpp

@@ -12,6 +12,18 @@
 POLYBAR_NS
 
 namespace i3_util {
+  /**
+   * Get currently focused workspace
+   */
+  shared_ptr<workspace_t> focused_workspace(const connection_t& conn) {
+    for (auto&& ws : conn.get_workspaces()) {
+      if (ws->focused) {
+        return ws;
+      }
+    }
+    return nullptr;
+  }
+
   /**
    * Get all i3 root windows
    */