diff --git a/doomsday/libappfw/include/de/framework/data.h b/doomsday/libappfw/include/de/framework/data.h
index bae21bc774..ded9cbfa51 100644
--- a/doomsday/libappfw/include/de/framework/data.h
+++ b/doomsday/libappfw/include/de/framework/data.h
@@ -20,6 +20,7 @@
 #define LIBAPPFW_UI_DATA_H
 
 #include <de/Observers>
+#include <functional>
 #include "../GuiWidget"
 
 namespace de {
@@ -128,6 +129,8 @@ class LIBAPPFW_PUBLIC Data
      */
     virtual dsize size() const = 0;
 
+    LoopResult forAll(std::function<LoopResult (Item const &)> func) const;
+
 private:
     DENG2_PRIVATE(d)
 };
diff --git a/doomsday/libappfw/src/data.cpp b/doomsday/libappfw/src/data.cpp
index 70f107a97d..5f2337951c 100644
--- a/doomsday/libappfw/src/data.cpp
+++ b/doomsday/libappfw/src/data.cpp
@@ -65,5 +65,15 @@ void Data::sort(SortMethod method)
     }
 }
 
+LoopResult Data::forAll(std::function<LoopResult (Item const &)> func) const
+{
+    for(DataPos pos = 0; pos < size(); ++pos)
+    {
+        if(auto result = func(at(pos)))
+            return result;
+    }
+    return LoopContinue;
+}
+
 } // namespace ui
 } // namespace de