1 files changed, 37 insertions, 0 deletions
diff --git a/src/domUtils.ml b/src/domUtils.ml
new file mode 100644
index 0000000..282ac12
--- /dev/null
+++ b/src/domUtils.ml
@@ -0,0 +1,37 @@
+open Webapi.Dom
+
+let toggleClassName (element : Dom.element) (className : string) : unit =
+  Element.setClassName element
+    (if Element.className element == className then "" else className)
+
+type child = TextChild of string | ElemChild of Dom.element
+
+let h (tag : string) (attributes : (string * string) Js.Array.t)
+    (children : child Js.Array.t) : Dom.element =
+  let element = Document.createElement tag document in
+  let () =
+    attributes
+    |> Js.Array.forEach (fun a -> Element.setAttribute (fst a) (snd a) element)
+  in
+  let () =
+    children
+    |> Js.Array.forEach (fun c ->
+           match c with
+           | TextChild t ->
+               Element.appendChild (Document.createTextNode t document) element
+           | ElemChild e -> Element.appendChild e element)
+  in
+  element
+
+external replace_child : Dom.node -> Dom.element -> Dom.element -> unit
+  = "replaceChild"
+  [@@bs.send]
+
+let replace (element : Dom.element) (replacement : Dom.element) : unit =
+  match Element.parentNode element with
+  | Some parent -> replace_child parent replacement element
+  | _ -> ()
+
+external value : Dom.eventTarget -> string option = "value" [@@bs.get]
+
+external setValue : Dom.element -> string -> unit = "value" [@@bs.set]