diff --git a/ui/wolf.lib.html b/ui/wolf.lib.html
new file mode 100644
index 0000000..2ef90be
--- /dev/null
+++ b/ui/wolf.lib.html
@@ -0,0 +1,24 @@
+<!-- Sample for now !! -->
+<wolf:define name="button">
+    <script>
+        define({
+            click: {
+                type: "event",
+                bindable: false,
+                set: attribute => {
+                    button.addEventListener("click", event => {
+
+                    })
+                }
+            },
+            icon: {
+                bindable: true,
+                bindTo: "icon"
+            }
+        })
+    </script>
+    <button wolf:id="button" class="icon"><i class="material-icons">{icon}</i></button>
+</wolf:define>
+
+<!-- usage -->
+<wolf:button click="goAdd" icon="add" />
\ No newline at end of file
diff --git a/ui/wolf.ui.js b/ui/wolf.ui.js
index f575d52..0c308ed 100644
--- a/ui/wolf.ui.js
+++ b/ui/wolf.ui.js
@@ -134,12 +134,34 @@
             callback && callback(dialogFrame, element);
         }
 
+        /**
+         * Show a dialog asking or showing information.
+         * @param {*} ui UI definition
+         * @param {*} buttons Button definition
+         * @param {element} element Destination element, application element recommended
+         * @param {boolean} modal True to show the dialog in modal way
+         * @param {*} [controller] Controller for the dialogs events, if none the parent element one will be used
+         * @param {function} [callback] Callback when the dialog is shown
+         */
+        function uiDialog(ui, buttons, element, modal, controller, callback) {
+
+        }
+
+        // ====================
+        // ====================
+        // ==           Private
+        // ====================
+
+        // ====================
+        // ====================
+        // ==         Injection
+        // ====================
         wolf.merge({
             // UI
             toast: toast,
             dialog: dialog,
             messageDialog: messageDialog,
+            uiDialog: uiDialog,
         });
-
     });
 })();
\ No newline at end of file